2024 EditionDivision B · 46 articles

Part 11 — Renovation

Section 11.1.General

11.1.1.Scope

11.1.1.1.Scope

(1) The scope of this Part shall be as described in Subsection . of Division A.

11.1.1.2.Definitions

(1) In this Part, Building system means a combination of elements or components that form a complete major division of construction in the design of a building or part of a building, including a structural or framing system, a waterproofing system, a drainage system, an exterior cladding system, a roofing system, a window system, a partition system, a corridor system, a stair system, a fire alarm and detection system, a sprinkler system or a heating, ventilation or air-conditioning system, a foundation system, a standpipe and hose system, a flooring system, a plumbing system, a sewage system or an electrical system.

11.1.2.Application

11.1.2.1.Extension, Material Alteration or Repair

(1) Where an existing building is subject to extension, material alteration or repair,

(a) the proposed construction shall comply with Section 11.3., and

(b) the performance level of the building shall be evaluated and compensating construction shall be undertaken in accordance with Section 11.4.

Section 11.2.Classification of Existing Buildings

11.2.1.Classification

11.2.1.1.Construction Index and Hazard Index

(1) Where proposed construction will result in the change of major occupancy of all or part ofan existing building to another major occupancy, the building shall be classified as to its,

(a) construction on the basis of its construction index as provided for in this Part, including Table .-A, and (See Note A-.(1)(a))

(b) occupancy on the basis of its hazard index as provided for in this Part, including Tables .-B to .-N. (See Note A- .(1)(b))

(2) Small or medium sized existing buildings as determined in Tables .-B to .-N facing multiple streets may be assigned a hazard index credit of 1, which may be subtracted from the hazard index of the proposed major occupancy to reduce the additional upgrading required by Table .-A provided,

(a) the building does not contain a Group B, Division 1, a Group C, or a Group F, Division 1 occupancy, and

(b) firefighting access complying with Articles . to . or Subsection . is provided.

(3) The requirements of Articles . to . and . to . do not apply to this Part.

(4) For the purpose of this Part, the calculation of the construction index and hazard inde x for a Group G major occupancy is permitted to be based on a Group F, Division 2 major occupancy.

11.2.1.2.Multiple Occupancies

(1) The classification of an existing building of multiple occupancy under Article . shall be applied according to Articles . to .

11.2.1.3.Prohibition of Occupancy Combinations

(1) Nothing in this Part relieves an applicant from complying with the requirements of Article ., . or .

Section 11.3.Proposed Construction

11.3.1.New and Existing Building Systems

11.3.1.1.Material Alteration or Repair of a Building System

(1) Where an existing building system is materially altered or repaired, the performance level of the building after the material alteration or repair shall be at least equal to the performance level of the building prior to the material alteration or repair. (See Note A- .(1))

11.3.1.2.New Building Systems and Extension of Existing Building Systems

(1) Except as provided in Article . and Section 11.5., the design and construction of a new building system or the extension of an existing building system, shall comply with all other Parts. (See Note A- .(1))

11.3.2.Extension of Buildings

11.3.2.1.Portion of Extended Buildings

(1) Where an existing building is extended,

(a) this Part applies to the existing portion of the building, and

(b) the extended portion of the building shall comply with all other Parts.

11.3.3.Renovation

11.3.3.1.Basic Renovation (See Note A-11.3.3.1.)

(1) Except as provided in Sentence (2) and Article ., construction may be carried out to maintain the existing performance level of all or part of an existing building, by the reuse, relocation or extension of the same or similar materials or components, to retain the existing character, structural uniqueness, heritage value, or aesthetic appearance of all or part of the building, if the construction will not adversely affect the early warning and evacuation systems, fire separations or the structural adequacy or will not create an unhealthy environment in the building.

(2) Construction in respect of a Group B, Division 3 oc cupancy, a hotel or a retirement home may be carried out in accordance with Sentence (1) only if the construction will be in conformance with the Fire Code made under the Fire Protection and Prevention Act, 1997.

11.3.3.2.Extensive Renovation (See Note A-11.3.3.2.)

(1) Where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed in an existing building and new interior walls, ceilings, floor assemblies or roof assemblies are installed in the building, structural and fire-resistance elements shall be constructed in compliance with the requirements of the other Parts.

(2) Except as provided in Section 11.5., the proposed construction within an existing suite shall comply with the requirements of Section 3.8. where,

(a) new interior walls or floor assemblies are installed, (b) the suite has an area greater than 300 m2, and

(i) a floor area where the existing difference in elevation between the adjacent ground level and the floor level is not more than 200 mm, or

(ii) a normally occupied floor area which is accessible by a passenger type elevator or other platform equipped passenger elevating device from an entrance storey where the existing difference in elevation between the adjacent ground level and the entrance storey level is not more than 200 mm.

(3) Except as provided in Section 11.5., the proposed construction within an existing suite, other than a suite described in Sentence (2) or a suite in a building described in Clause .(1)(a), (b), (c) or (d), shall comply with the requirements of Sentences .(6), .(6), .(6), .(19), .(1), .(5) and .(4) where new interior walls or floor assemblies are installed. (See Note A- .(3))

(4) Except as provided in Sentence (5), where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed on any storey in an existing building and new interior walls, ceilings, floor assemblies or roof assemblies are installed, the storey shall be sprinklered if,

(a) the storey will contain a Group C major occupancy, and

(b) the building is over 3 storeys in building height.

(5) Sentence (4) does not apply where the building,

(a) conforms to Subclause .(1)(a)(ii), and

(b) contains dwelling units having means of egress conforming to Sentence .(8).

(6) Where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed and new interior walls, ceilings, floor assemblies or roof assemblies are installed in an existing building or part of an existing building that is a retirement home, the following requirements apply:

(a) the retirement home shall be sprinklered,

(b) a voice communication system conforming to Article . shall be provided in the building, if Clause .(1)(b) or (c), as applicable, requires that such a voice communication system be provided in the building, and (c) doors to suites and sleeping rooms not within suites in the retirement home, other than doors leading directly to the exterior, shall be equipped with self-closing devices.

11.3.4.Plumbing

11.3.4.1.Extension, Material Alteration or Repair

(1) Despite Subsections . to ., when an existing building is extended or subject to material alteration or repair, Part 7 applies,

(a) to the design and construction of plumbing in the extensions and those parts of the building subject to material alteration and repair, and

(b) to plumbing which is adversely affected by the extension, alteration or repair.

11.3.5.Sewage Systems

11.3.5.1.Existing Septic Tanks

(1) Despite Subsections . to ., where an existing septic tank is subject to material alteration, repair or replacement, the construction of the septic tank shall comply with Part 8.

11.3.5.2.Vertical Separations and Existing Sewage Systems

(1) Despite Subsections . to ., where an existing sewage system is extended or is subject to material alteration or repair, the requirements respecting the vertical separation to the water table set out in Part 8 apply to the extended, altered or repaired portions ofthe sewage system as well as to the existing portions ofthe sewage system.

Section 11.4.Performance Level Evaluation and

11.4.1.General

11.4.1.1.Performance Level

(1) The performance level of a building after construction shall not be less than the performance level of the building prior to constructio n.

(2) For the purposes of Sentence (1), reduction of performance level shall be determined in accordance with Subsection .

(3) Where the proposed const ruction would reduce the performance level of an existing building, compensating construction shall be required in conformance with Subsection .

(4) For the purpose of this Subsection, where a permit to construct a farm building has been applied for before January 1, 2025, the performance level of the farm building is permitted to be evaluated based on the applicable requirements of Ontario Regulation 332/12 (Building Code) made under the Act, as it read on December 31, 2024.

11.4.2.Reduction in Performance Level

11.4.2.1.Structural

(1) The performance level of an existing building is reduced where after proposed construction in all or part of an existing building,

(a) the major occupancy will change to a different major occupa ncy,

(b) the occupant load will increase by more than 15%, or

(c) the live load will increase due to change in use within the same major occupancy, and the existing structural floor and roof framing systems and their supporting members after the construction are not adequate to support the proposed dead loads and live loads.

11.4.2.2.Increase in Occupant Load

(1) Except as provided in Sentences .(2) and (3), the performance level of an existing building is reduced where proposed construction will increase the occupant load of an existing building by more than 15%.

(2) The performance le vel of an existing building is reduced where proposed construction will increase the occupant load by 15% or less and the new occupant load will be more than 15% above the occupant load for which a fire alarm system is required under Sentence .(2).

(3) The performance le vel of an existing building is reduced where proposed construction will increase the occupant load by 15% or less and the new occupant load will be more than 15% above the existing exit capacity as required under Article .

11.4.2.3.Change of Major Occupancy

(1) Except as provided in Sentence .(4), the performance level of an existing building is reduced where proposed construction will result in,

(a) the change of the major occupancy of all or part ofan existing bu ilding to another major occupancy of a greater hazard index,

(b) the conversion of a suite of a Group C major occupancy into more than one suite of Group C major occupancy,

(c) the conversion of a suite or part ofa suite of a Group A, Division 2 or a Group A, Division 4 major occupancy into gaming premises,

(d) the change of a farm building or part ofa farm building to another major occupancy other than a Group G m ajor occupancy,

(e) the change of a building or part of a building to a post-disaster building,

(f) the change of a building or part of a building to a retirement home,

(g) the change in use of a building or part of a building where the previous major occupancy of the building or part of the building cannot be determined, or

(h) the change of a farm building or part ofa farm building to a Group G, Division 1 major occupancy.

(2) For the purpose of this Article and Sentences .(1) and .(4), the change of use set out in Clauses

(1)(b) to (h) is also deemed to constitute a change in major occupancy.

(3) The performance level of an existing building is reduced where the early warning and evacuation systems requirements of other Parts for the proposed major occupancy exceed those of the existing building.

(4) The performance level of an existing building is reduced where the proposed major occupancy in the building is not separated from the adjoining major occupancies by fire separations having fire-resistance ratings conforming to Tables ., . and .-B.

(5) The performance level of an existing building is reduced where the occupancy of all or part of an existing building of combustible construction is changed to a new major occupancy that would require the building, if it were a new building, to be of noncombustible construction or to be constructed in accordance with Article . or .

(6) Despite Clause (1)(a), the performance level of an existing building is reduced where proposed construction will result in the change of the major occup ancy of all or part ofan existing building to a Group C major occupancy in a building over 3 storeys in building height, except in a building conforming to Subclause .(1)(a)(ii) and having an egress facility conforming to Sentence .(8).

11.4.2.4.Plumbing

(1) The performance level of an existing building is reduced where the existing building is extended or subject to material alteration or repair, and plumbing in the existing building is adversely affected by the extension, alteration or repair.

11.4.2.5.Sewage Systems

(1) The performance level of an existing building is reduced where the existing building is extended or subject to material alteration or repair and a sewage system serving the existing building is adversely affected by the extension, alteration or repair of the existing buildin g.

(2) Except as provided in Sentence (3), the performance level of an existing building is reduced where proposed construction will increase the occupant load of an existing building, and the new occupant load will result in the total daily design sanitary sewage flow of the building, calculated in accordance with Article ., exceeding the capacity of any component of a sewage sys tem serving the building.

(3) The performance level of an existing dwelling unit is reduced where proposed construction that,

(a) increases the number of bedrooms in the dwelling unit,

(b) exceeds 15% of the finished area of the dwelling unit, or

(c) adds new plumbing fixtures to the dwelling unit, will result in the total daily design sanitary sewage flow of the dwelling unit, calculated in accordance with Article ., exceeding the capacity of any component of a sewage system serving the dwelling unit.

(4) The performan ce level of an existing building is reduced where proposed construction will result in the change of a major occupancy of all or part of the existing building to another major occupancy and,

(a) the total daily design sanitary sewage flow of the proposed major occupancy, calculated in accordance with Article ., exceeds the capacity of any component of a sewage system serving the buildin g, or

(b) the type or amount of sanitary sewage which will, under the proposed major occupancy, be discharged to a sewage system serving the building, is prohibited by Article .

11.4.2.6.Extension of Buildings of Combustible Construction

(1) The performance level of an existing building of combustible construction is reduced where the existing building is extended by adding a storey or storeys such that the extended building will be more than four storeys in building height.

11.4.3.Compensating Construction

11.4.3.1.General (See Note A-11.4.3.1.)

(1) Where the performance level of an existing building is reduced under Subsection ., compensating co nstruction shall be carried out in accordance with this Subsection.

(2) Except as provided in Sentence (3), compensating construction required under this Subsection applies to the part of the building being altered and shall include,

(a) fire separations, with the required fire-resistance ratings, separating the part being altered from the floor areas immediately above and below and from the immediate adjacent areas, and

(b) access to exits and exits from the building, where the alteration adversely affects the exit system of the building.

(3) Compensating construction required under this Subsection applies to the existing building systems that are adversely affected by the proposed constru ction.

11.4.3.2.Structural

(1) Where the performance level of an existing building is reduced under Sentence .(1),

(a) remedial measures shall be taken to support the proposed loads, or

(b) the portion of the floor affected by the proposed loads shall be restricted to the loading it will support and signs stating the restrictions shall be posted. (See Note A- .(1))

11.4.3.3.Increase in Occupant Load (See Note A-11.4.3.3.)

(1) Where the performance level of an existing building is reduced under Sentence .(1), (2) or (3), the building shall be evaluated, and the early warning and evacuation systems shall be upgraded, in conformance with the applicable requirements of Table .

(2) Sentence (1) does not apply in a Group C occupanc y where the new total occupant load is,

(a) 14 persons or fewer in a boarding, lodging or r ooming house, except that where the occupant load is between 10 and 15 persons, an interconnected system of smoke alarms in corridors near stairways is required, or

(b) 16 persons or fewer in a building containing residential suites which are dwelling units, except that where the occupant load is between 10 and 17 persons, an interconnected system of smoke alarms in corridors near stairways is required.

(3) Where the performance level of an existing building is reduced under Sentence .(1), additional construction shall be required in order that the building or part of the building subject to the increase in o ccupant load conforms to the requirements of Sentences .(1) and .(2), Subsection . and Article .

11.4.3.4.Change in Major Occupancy (See Note A-11.4.3.4.)

(1) Where the performance level of an existing building is reduced under Clause .(1)(a), (b), (c), (d), (e) or (g), additional upgrading shall be required in conformance with Table .-A and so that the construction index of the building is increased to at least equal the hazard index of the new major occupancy that the building is to support.

(2) A building or part of the building subject to a change of major occupancy shall conform to the requirements of Articles . to ., Subsection ., Sections 3.7., 3.11., 3.12., Sentences .(2), and .(1) and .(7.1), Subsections . and ., 9.5.3A. to 9.5.3F. and ., Section 9.7., Subsection ., Sections 9.31. and 9.32., and Subsections . to . as they apply to the new major occupancy that the building or part of the building is to support.

(3) Where the performance level of an existing building is reduced under Sentence .(3), the building shall be evaluated, and the early warning and evacuation systems shall be upgraded, in conformance with the applicable requirements of Table .

(4) Where the performance level of an existing building is reduced under Sentence .(4), upgrading of the fire separations shall be required in conformance with the applicable requirements of Article . and Table .-B.

(5) Where the performance level is reduced under Sentence .(5), the requirement for the building to be of noncombustible construction or to be constructed in accordance with Article . or . is satisfied if the building is sprinkler ed.

(6) Where the performance level is reduced under Sentence .(6), the storey subject to the change shall be sprinklered.

(7) Where the performance level of an existing building is reduced under Clause .(1)(f), the following requirements apply:

(a) the retirement home shall be sprinklered,

(b) a voice communication system conforming to Article . shall be provided in the building, and

(c) doors to suites and sleeping rooms not within suites in the reti rement home, other than doors leading directly to the exterior, shall be equipped with self-closing devices.

(8) Where a major occupancy is changed to a Group B, Division 2 major occupancy, heating, ventilating, air conditioning systems shall conform to the requirements of Sentence .(1).

(9) Where a major occupancy is changed to a Group B, Division 3 major occupancy, ventilation, air circulation, and filtration systems shall conform to the requirements of Sentence .(1).

11.4.3.5.Plumbing

(1) Where the performance level of an existing building is reduced under Sentence .(1), upgrading of plumbing in the existing building which is adversely affected by the extension, alteration or repair shall be required in conformance with Part 7.

11.4.3.6.Sewage Systems

(1) Where the performance level of an existing building is reduced under Article ., upgrading of a sewage system which is adversely affected by the construction, increase in occupant load, increase in the total daily design sanitary sewage flow or change in amount or type of sanitary sewage shall be required in conformance with Part 8.

11.4.3.7.Extension of Buildings of Combustible Construction

(1) Where the performance level of an existing building is reduced under Article ., the building shall be sprinklered.

Section 11.5.Compliance Alternatives

11.5.1.Compliance Alternatives (See Note A-11.5.1.)

11.5.1.1.Compliance Alternatives

(1) A compliance alternative shown in Table .-A, .-B, .-C, .-D/E or .-F may be substituted for a requirement contained in Part 3, 4, 6 or 8 where the chief building official is satisfied that compliance with the requirement is impracticable because,

(a) of structural or c onstruction difficulties, or

(b) it is detrimental to the preservation of a heritage building.

(2) A compliance alternative shown in Table .-A, .-B, .-C, .-D/E or .-F may be substituted for a requirement contained in Part 9 or 12 without satisfying the chief building official that compliance with the requirement is impracticable.

[TABLE:0] Notes to Table -.A:

(1) C.I. of 1 is lowest fire protection performance level and C.I. of 8 is highest.

(2) Take highest rating for C.I. from Table .-A for existing building.

Table .-B(1)(4) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:1] Notes to Table .-B:

Building Size ( Maximum ) (2)(3)
– 300 occupant load maximum / 1 storey – 600 m 2 / 600 occupant load maximum / 1 storey with less than 40% 2 storey (6) – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) Take lowest rating for H.I. from Table for major occupancy change.

(6) Building may have less than 40% of its area as 2 storeys for purposes as described in Clauses .(1)(c) and (d).

Table .-C(1)(4)(6) Hazard Index Forming Part of Sentences .(1) and (2)

Group A Division 2	Occupancy H .I. (5)
Small	Medium	Large
Art Galleries	3	4	6
Auditoria	3	4	6
Billiard Halls, Amusement Arcades	3	4	6
Bowling Alleys	3	4	6
Churches	3	4	6
Clubs, Lodges (Non-Residential)	3	4	6
Community Halls	3	4	6
Concert Halls	3	4	6
Court Rooms	3	4	6
Dance Halls	3	4	6
Daycare Centres	3	4	6
Exhibition Halls (Without Sales)	3	4	6
Exhibition Halls (With Sales)	See Group E
Gaming premises	3	4	6
Gymnasia (Multi-Purpose)	3	4	6
Gymnasia (Athletic)	3	4	6
Lecture Halls	3	4	6
Libraries	3	4	6
Licensed Beverage Est ablishments	3	4	6
Licensed Clubs, Lodges	3	4	6
Museums	3	4	6
Passenger Stations / Depots	3	4	6
Public Heritage Buil dings	3	—	—
Recreational Piers	3	4	6
Restaurants	3	4	6
Schools, Colleges	3	4	6
Undertaking Premises	3	4	6

Table .-C(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences .(1) and (2) Notes to Table .-C:

Building Size ( Maximum ) (2)(3)
– 400 m 2 / 1 storey – 250 m 2 / 3 storey ( Public Heritage Building ) – 800 m 2 / 2 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Small Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) Take lowest rating for H.I. from Table for major occupancy change.

(6) Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.

Table .-D(1)(4) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:5] Notes to Table .-D:

Building Size ( Maximum ) (2)(3)
– 1 000 m 2 / 1 storey – 2 000 m 2 / 2 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) Take lowest rating for H.I. from Table for major occupancy change.

Table .-E(1)(3) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:7] Notes to Table .-E:

Building Size (Maximum) (2)
– 2 500 occupant load max . / min . limiting distance of 6 m ( combustible ) – 15 000 occupant load maximum ( with roof at least ½ rating if combustible ) – Unlimited occupant load	Small Medium Large

(2) Building size is based on the existing building facing one s treet.

(3) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(4) Take lowest rating for H.I. from Table for major occupancy change.

Table .-F(1) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:9] Notes to Table .-F:

Building Size (Maximum) (2)
– Any area / 1 storey – 600 m 2 / 1 storey ( Police Station with Detention ) – Any area ( noncombustible ) / 2 storey – Any area ( noncombustible ); 500 m 2 ( combustible ) / 2 storey – Over 18 m high, measured between grade and the floor level of the top storey ( noncombustibl e ) – Over 500 m 2 ( combustible ) / over 2 storey	Small Small Medium Large H.I. = 7 H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(4) Minimum security means occupants free to exit building in a fire emergency.

(5) Detention occupancy with any H.I. shall be sprinklered.

Table .-G(1)(4) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:11] Notes to Table .-G:

Building Size ( Maximum ) (2)(3)
– 250 m 2 / 1 storey – 600 m 2 / 1 storey ( Police Station with Detention ) – 500 m 2 / 2 storey ; 1 000 m 2 / 1 storey – Any area ( noncombustible ); 500 m 2 ( combustible ) / 2 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Small Medium Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(6) Immobile means patients are attached to life support systems and cannot be moved. Non-Ambulatory means patients are confined to bed and require transportation. Ambulatory means patients may walk on their own.

(7) Care and treatment occupancy with any H.I. shall be sprinklered.

Table .-H(1) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:13] Notes to Table .-H:

Building Size ( Maximum ) (2)(3)
– 600 m 2 / 1 storey – 500 m 2 / 2 storey ; 1 000 m 2 / 1 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the to p storey	Small Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(5) Care occupancy with any H.I. shall be sprinklered.

(6) Non-Ambulatory means patients are confined to bed and require transportation. Ambulatory means patients may walk on their own.

Table .-I(1) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:15] Notes to Table .-I:

Building Size ( Maximum ) (2)(3)
– 600 m 2 / 3 storey – 250 m 2 / 3 storey ( Public Heritage Building ) – 2 000 m 2 / not exceeding 6 storeys – Any area / not exceeding 36 m high, measured between grade and the floor level of the top storey – Over 36 m high, measured between grade and the floor level of the top storey – Hotels over 18 m high, measured between grade and the floor level of the to p storey	Small Small Medium Large H.I. = 7 H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.

(4) Take lowest rating for H.I. from Table for major occupancy change.

Table .-J(1)(4)6) Hazard Index Forming Part of Sentences .(1) and (2)

Group D	Occupancy H .I. (5)
Small	Medium	Large
Advertising and Sales Offices	3	3	5
Automatic Bank Deposit	3	4	5
Barber/Hairdresser Shops	3	4	5
Beauty Parlours	3	4	5
Branch Banks	3	4	5
Car Rental Premises	3	3	5
Chiropractic Offices	3	4	5
Communications Offices (Telecom munications)	3	4	5
Communications Offices (Courier)	3	3	5
Computer Centres	3	4	5
Construction Offices	3	3	5
Costume Rental Premises	3	4	5
Dental Offices (Denture Clinic)	3	4	5
Dental Offices (Surgical/Anaesthesia)	4	5	6
Dental Offices (General)	3	4	5
Dry Cleaning Depots	3	4	5
Dry Cleaning Premises (Self-Serve)	4	4	5
Health/Fitness Clubs	3	4	5
Laundries (Self-Serve)	4	4	5
Massage Parlours	3	4	5
Medical Offices (Examina tion)	3	4	5
Medical Offices (Surgical/Anaesthesia)	4	5	6
Offices (Business)	3	3	5
Offices (Charitable)	3	3	5
Offices (Legal/Accounting)	3	3	5
Offices/Studios (Design)	3	4	5

Table .-J(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:18] Notes to Table .-J:

Building Size ( Maximum ) (2)(3)
– 800 m 2 / 2 storey – 250 m 2 / 3 storey ( Public Heritage Building ) – 1 600 m 2 / 3 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey, but not exceeding 36 m high, measured between grade and the floor level of the top storey – Over 36 m high, measured between grade and the floor level of the top storey	Small Small Medium Large H.I. = 6 H.I. = 7

Building Size ( Maximum ) (2)(3)

– 800 m 2 / 2 storey – 250 m 2 / 3 storey ( Public Heritage Building ) – 1 600 m 2 / 3 storey – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey, but not exceeding 36 m high, measured between grade and the floor level of the top storey – Over 36 m high, measured between grade and the floor level of the top storey

Small Small Medium Large H.I. = 6 H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(6) Buildings which exceed 3 storeys in building height and are of combustible construction shall be sprinklered.

Table .-K(1)(4)(6) Hazard Index Forming Part of Sentences .(1) and (2)

Group E	Occupancy H .I. (5)
Small	Medium	Large
Automotive/Hardware Depa rtment Stores	4	5	7
China Shops	3	4	6
Department Stores	4	5	7
Electrical Stores (Fixtures)	3	3	5
Exhibition Halls (With Sales)	4	5	7
“Fast Food” Outlets	3	4	5
Feed and Seed Stores	4	5	7
Flea Markets	4	5	7
Flowers Shops	3	4	6
“Food” and Vegetable Markets	3	4	6
Garden Shops	3	4	6
“Gas” Bars	4	5	7
Gift Shops	3	4	6
Home Improvement Sto res	4	5	7
Kitchen/Bathroom Cu pboards Stores	3	4	6
Plumbing Stores (Fixtures/Accessories)	3	3	5
“Pop” Shops	3	4	6
Public Heritage Buil dings	3	—	—
Rentals	See Group D
Restaurants ( Not More Than 30 Persons as Permitted by Article 3.1.2.7 .)	3	4	5
Shopping Malls	4	5	7
Stationery/Office Supply Stores	3	4	6
Stores ( Art )	3	4	6
Stores (Baked Goods)	3	4	6
Stores ( Beer )	3	4	6
Stores ( Book )	3	4	6
Stores (Camera)	3	4	6
Stores (Candy)	3	4	6

Table .-K(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:21] Notes to Table .-K:

Building Size ( Maximum ) (2)(3)
– 600 m 2 / 2 storey – 250 m 2 / 3 storey ( Public Heritage Building ) – 800 m 2 / 3 storey – Any area / up to 18 m high, measured between grade and the floor level o f the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Small Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(6) All buildings1 500 m2 and over are to be sprinklered.

Table .-L(1)(4)(5) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:23] Notes to Table .-L:

Building Size (Maximum) (2)
– 400 m 2 / 2 storey – 600 m 2 / 4 storey – 1 500 m 2 / 4 storey	Small Medium Large

(2) Sizes are based on building area and building heig ht.

(3) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(4) All buildings1 500 m2 and over are to be sprinklered.

(5) All floor assemblies shall be fire separat ions.

Table .-M(1)(4)(6) Hazard Index Forming Part of Sentences .(1) and (2)

Group F Division 2	Occupancy H .I. (5)
Small	Medium	Large
Aircraft Hangars	3	5	6
Abattoirs	3	4	5
Bakeries	3	5	6
Body Shops	3	5	6
Candy Plants	3	4	5
Cold Storage Plants Combustible Insulation Flammable Refrigerant Combustible Packaging	3	5	7
Combustible Insulation Flammable Refrigerant Noncombustible Packaging	3	5	6
Combustible Insulation Non-Flammable Refrigerant Noncombustible Packaging	3	4	5
Noncombustible Insulation Non-Flammable Refrigerant Noncombustible Packaging	2	3	4
Dry Cleaning Establishmen ts (Non-flammable or Non-explosive)	3	4	5
Electrical Substations	3	4	5
Factories (High Fire Load)	3	5	6
Freight Depots (High Fire Lo ad)	3	5	6
Helicopter Landings (On Roof)	3	4	5
Laboratories (High Fire Load)	3	5	6
Laundries (Not Self-Se rve)	3	4	5
Manufacturer Sales (Hi gh Fire Load)	3	5	6
Mattress Factories	3	4	5
Meat Packing Plants	3	4	5

Table .-M(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:26] Notes to Table .-M:

Building Size ( Maximum ) (2)(3)
– 600 m 2 / 2 storey – 800 m 2 / 4 storey – 600 m 2 / 3 storey ( Public Heritage Building ) – Any area / 6 storey not exceeding 18 m high , measured between grade and the floor level of the top storey – Over 18 m high, measured between grade and the floor level of the top storey	Small Medium Medium Large H.I. = 7

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

(6) All buildings1 500 m2 and over are to be sprinklered.

Table .-N(1)(4) Hazard Index Forming Part of Sentences .(1) and (2)

[TABLE:28] Notes to Table .-N:

Building Size ( Maximum ) (2)(3)
– 800 m 2 / 2 storey – 1 200 m 2 / 4 storey – 600 m 2 / 3 storey ( Public Heritage Building ) – Any area / 6 storey not exceeding 18 m high , measured between grade and the floor level of the top storey – Over 18 m, but not exceeding 36 m high , measured between grade and the floor level of the top storey – Over 36 m high, measured between grade and the floor level of the top storey	Small Medium Medium Large H.I. = 5 H.I. = 6

(2) Sizes are based on building area and building height, unless noted.

(3) Building size is based on the existing building facing one s treet.

(4) For existing buildings facing multiple streets, see Sentence .(2) and Table .-A.

(5) When the size of a building falls into more than one category, the H.I. for the least restrictive is permitted to be used.

Table . For Evaluation and Upgrading of Early Warning/Evacuation Forming Part of Sentences .(1) and .(3)

[TABLE:30] Notes to Table .:

(1) See Tables .-A to .-F for compliance alternatives that may be used.

(2) Applies to change of major occupancy to one of equal or lesser hazard, and to increase in occupant load by 15% or less.

(3) Applies to change of major occupa ncy to one of greater hazard, and to increase in occupant load greater than 15%.

Table .-A Additional Upgrading Forming Part of Sentences .(2) and .(1)

New Major Occupancy ( H.I. ) Number (3)	Increase of C .I. to Equal H.I. to Support New Major Occupancy	Additional Required Upgrading	Part 11 Alternative Compliance (A.C.)	Comments (1)(2)
H.I. 2	C.I. 1 to 2	Comply with Table 11.2.1.1 .-A ratings for C .I. of 2	(a) Provide early warning system, or (b) Comply with any A .C.’ s in Col . 4.
H.I. 3	C.I. (1 or 2) to 3	Comply with Table 11.2.1.1 .-A ratings for C .I. of 3	(a) Provide early warning system, or (b) Comply with any A .C.’ s in Col . 4.	Combustible to Combustible only.
H.I. 4	C.I. (1, 2 or 3) to 4	Comply with Table 11.2.1.1 .-A ratings for C .I. of 4	Provide sprinklers in locations where assemblies do not comply with Table 11.2.1.1 .-A	Combustible to Combustible. Noncombustible to Noncombustible .
H.I. 5	C.I. 4 to 5	Comply with Table 11.2.1.1 .-A ratings for C .I. of 5	Provide sprinklers in locations where assemblies do not comply with Table 11.2.1.1 .-A
H.I. 5	C.I. (1, 2 or 3) to 5	Comply with Table 11.2.1.1 .-A ratings for C .I. of 5	Provide sprinklers in locations where assemblies do not comply with Table 11.2.1.1 .-A	Combustible to Combustible. Noncombustible to Noncombustible.
H.I. 6	C.I. 5 ( Noncombustible ) to 6	Comply with Table 11.2.1.1 .-A ratings for C .I. of 6	(a) Provide sprinkler system , plus 45 min roof rating .
H.I. 6	C.I. 5 ( Heavy timber ) to 6	Comply with A .C.	(b) Provide sprinkler system .
H.I. 6	C.I. 5 ( Combustible ) to 6	Comply with A .C.	(c) Provide 1 h rating plus sprinkler system.
H.I. 6	C.I. (3 or 4) to 6*	Comply with Table 11.2.1.1 .-A ratings for C .I. of 6	(d) Provide sprinkler system , plus 45 min rating .	* For Noncombustible construction only.
H.I. 6	C.I. (1, 2, 3 or 4) to 6**	Comply with A .C.	(e) Provide 1 h rating plus sprinkler system.	** For Combustible construction only.
H.I. 7	C.I. 6 to 7	Comply with Table 11.2.1.1 .-A ratings for C .I. of 7	(a) Provide sprinkler system .
H.I. 7	C.I. (3, 4 or 5) to 7*	Comply with Table 11.2.1.1 .-A ratings for C .I. of 7	(b) Provide 1 h rating plus sprinkler system.	* For Noncombustible construction only.

Table .-A (Cont'd) Additional Upgrading Forming Part of Sentences .(2) and .(1)

[TABLE:32] Notes to Table .A.:

(1) One asterisk (*) refers to noncombustible construction.

(2) Two asterisks (**) refers to combustible construction.

(3) Group B, occupancy with any H.I. shall be sprinklered.

Table .-B(1) Additional Upgrading for Multiple Major Occupancies Forming Part of Sentences .(4) and .(4)

[TABLE:33] Notes to Table .B.:

(1) For buildings with multiple major occupancies only, where there is a change in major occupancy.

(2) See Section 11.4.

Table .-A Compliance Alternatives for Assembly Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
A1	3.1.4.7.	Existing heavy timber construct ion acceptable where construction is within 90% of member sizes listed in Part 3.
A2	3.1.5.2. to 3.1.5.4 .; 3.1.5.8 .	Existing acceptable.
A3	3.1.5.9. to 3.1.5.12 .	Except for exposed f oamed plastics, existing acceptable. To match existing, materials may be added from o n or off site.
A4	3.1.5.18. to 3.1.5.20 .; 3.1.5.25 .	Existing acceptable.
A5	3.1.7.1.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Techncial Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
A6	3.1.7.5.(3)	Existing assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
A7	3.1.8.5.(2)	(a) Existing functional and sound doors in existing buildings that are either ho llow metal or kalamein and containing wired glass at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2) are permitted in lieu of doors not required to exceed 45 min , (b) all existing functional and sound hollow metal or kalamein doors which c arry existing 1.5 h labels are acceptable in lieu of current 1.5 h labels and may contain wired glass panels not exceeding 0.0645 m², at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2), and (c) every fire door, window assembly or glass block us ed as a closure in a required fire separation shall be installed in conformance with good engineering practice.
A8	3.1.8.7., 3.1.8.8 . and 3.1.8.10 .	Fire dampers or fire stop f laps are not required to be installed in existing ducts at penetrations of existing fire separations .
A9	3.1.8.12 .(1)	Existing 45 mm solid core wood doors acceptable.
A10	3.1.8.13 .(1)	Existing functional ly operable self-closing devices acceptable.
A11	3.1.8.15 .	Existing functionally operable latching devices, excluding draw bolts, are acceptable.
A12	3.1.8.16 .	Existing transoms or sidelights located in required fire separations may be retained if wired glass at least 6 mm thick is securely fixed to a steel frame with stee l stops. Operable transoms shall be fixed closed.
A13	3.1.8.17. to 3.1.8.19 .	Existing acceptable.
A14	3.1.11.	Where the concealed space is being materially altered, smoke or heat detection in that space in lieu of fire blocks and tied into fire alar m system is acceptable.
A15	3.1.13.10 .	Existing acceptable.

Table .-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
A16	3.2.3.	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies not closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, shall be restricted to the same fire compar tment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable, or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is sprinklered.
A17	3.2.3.6.(3)	Existing roof soffit projections accepta ble.
A18	3.2.4.	(a) Existing fire alarm system may remain except that Article 3.2.4.5 . does not apply where the fire safety plan (as described in the Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Depart ment connection and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
A19	3.2.4.9.(2)(e)	Does not apply to existing ins tallations in buildings .
A20	3.2.4.10 .(5)(c)	Does not apply to existing ins tallations in buildings .
A21	3.2.5.3.(1) and (2)	Existing acceptable.
A22	3.2.5.4. to 3.2.5.6 .	Existing acceptable provided the building is sprinklered .
A23	3.2.5.7.	Does not apply, except where a change in major occupancy occurs from a lesser hazard index .
A24	3.2.5.8. to 3.2.5.11 .	Does not apply to buildings 6 storeys and less. Does not apply to s prinklered buildings .
A25	3.2.5.12 .	Existing sprinkler systems in existing build ings that do not conform to NFPA 13 may be altered, added to, or e xtended from the existing system without complying with NFPA 13, provided the system is operational and adequate with respect to coverage, water supply and controls, and provided the system is evaluated by a qualified designer.
A26	3.3.1.5.	One egress door is allowed where the occupant load is not grea ter than 100 persons, provided floor area is sprinklered and travel distance does not exceed 25 m.
A27	3.3.1.9.	Existing width of public corridors of not less than 914 mm is acce ptable.
A28	3.3.1.9.(6)	An existing dead-end corridor is permitted where the occupant load is not greater than 20 persons, provided travel distance is not greater tha n 6 m plus corridor width to “ exit choice ” point .

Table .-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
A29	3.3.1.11 .; 3.3.1.12 .	Existing door swings may remain in heritage buildings , existing or being restored, with no change in major occupancy and with occupant load no greater than 100.
A30	3.3.1.13 .	Existing doors may remain in a heritage building , e xisting or being restored, with no change in major occupancy .
A31	3.3.1.20 .	Existing stained, etched, bevelled, leaded or figured glass acceptable.
A32	3.3.5.4.(1); 3.3.5.7 .(1), (3) and (4)	Need not comply where a gasketed door and self closer are provided in the existing fire separation .
A33	3.4.1.5.(1)	Existing acceptable.
A34	3.4.1.5.(2)	Existing acceptable provided the existing guard is not less than 914 mm.
A35	3.4.1.8.	Existing stained, etched, bevelled, leaded or figured glass acceptable.
A36	3.4.2.5.(1)	Existing travel distance acceptable where floor area is sprinklered and where there is no change in major occupancy .
A37	3.4.3.2.(5)	Need not comply where there is no increase in occup ant load .
A38	3.4.3.2.(8)	Existing width of exits acceptable provided the occupant load is not more than 15% above the exit capacity.
A39	3.4.3.3.	Existing acceptable.
A40	3.4.3.4.	Existing headroom clearance of not less than 1 980 mm is acceptable .
A41	3.4.4.4.(8)	Existing washrooms opening directly into an exit stairwell shall be separated from the exit stairwell by a 45 min closure .
A42	3.4.5.1.(2) and (9)	Existing illuminated legible exit signs are accept able.
A43	3.4.6.2.	Existing acceptable, if visually apparent.
A44	3.4.6.3.	Existing acceptable.
A45	3.4.6.4.	Existing acceptable.
A46	3.4.6.5.(3) to (13)	Existing acceptable.
A47	3.4.6.6.(2) to (5)	Existing acceptable.
A48	3.4.6.7.(1)	Existing acceptable.
A49	3.4.6.8.	Existing acceptable.
A50	3.4.6.9.	Existing acceptable.
A51	3.4.6.11 .(1) to (4) and (6)	Existing acceptable.
A52	3.4.6.12 .	Existing acceptable in public heritage buildings or a change in occupancy with no increase in occupant loa d .
A53	3.4.6.16 .(2) to (4)	Existing functionally operable panic hardware acceptable.

Table .-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
A54	3.4.7.2.	Combustible fire escape s which are protected from fire in accordance with Sentence 3.2.3.14 .(2) are permitted or may be reconstructed or recreated ( as in the case of a heritage building ).
A55	3.5.1.	Existing acceptable.
A56	3.6.2.1.(7)	Existing fire separation of not less than 30 min is acceptable.
A57	3.6.2.2.	Existing acceptable where explosion-resistant construction or venting is provided.
A58	3.6.2.6.	Existing acceptable.
A59	3.6.2.7.(1)	2 h fire separation acc eptable.
A60	3.6.3.1.(1) to (5)	45 min fire separation acceptable.
A61	3.6.3.3.(1) to (5) and (8)	Existing acceptable.
A62	3.6.3.3.(9)	1 h acceptable if sprinklered .
A63	3.6.3.3.(10)	Existing acceptable.
A64	3.6.3.4.	Existing acceptable.
A65	3.6.4.	Existing acceptable.
A66	3.7.1.3.(3)	2.1 m is acceptable .
A67	3.7.2.1.(3)	The minimum glass areas may be reduced by 50%.
A68	3.7.4.	Where the occupant load is increased by more than 15% above the capacity of the existing facilities, facilities to be added to accommodate the increase.
A69	3.8.1.2.	Existing accessible entrance acceptable . ( See C .A. A75) Existing curb ramp conforming to Sentence 3.8.3.2 .(3) is acceptable . Existing principal entrance acceptable, provided at least one barrier-free ent rance is available.
A70	3.8.1.3.(1)	Existing unobstructed width of 920 mm minimum is acceptable.
A71	3.8.1.3.(4)	Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length located not more than 30 m apart is acceptable .
A72	3.8.3.2.(3)(b)	Existing curb ramp acceptable , provided width not less than 1 200 mm .
A73	3.8.3.3.(1)	Existing doorway acceptable, provided not less than 800 mm wide.
A74	3.8.3.3.(11)(a)	Existing distance acceptable , provided not less than 1 200 mm plus the width of any door that swings into the space in the path of travel.
A75	3.8.3.4.(1)(a)	Existing ramp acceptable, provided not less than 870 mm between handr ails.
A76	3.8.3.8.(5)	Existing grab bar is acceptable.
A77	3.8.3.12 .	Existing universal washroom acceptable.
A78	3.8.3.13 .(2)(g)	Existing grab bar is acceptable.

Table .-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
A79	3.8.3.16 .	Existing drinking fountain conforming to Clauses 3.8.3.16 .(2)(a) and (b) acceptable .
A80	3.6.3.16 A.	Existing water bottle filling stations are acceptable.
A81	3.11.3.1 .(9)	Existing clear width acceptable , provided not less than 900 mm .
A82	3.11.3.1 .(14)	Existing painted line acc eptable.
A83	4.1.8.	The requirements under this Subsection do not apply.
A84	6.3.1.1.(2)	Required outdoor air rates may be provided by mechanical, natural or com bination of natural and mechanical means.
A85	8.2.1.4.	Existing clearances acceptable where a sewage system is replaced with another sewage system within the same cl ass and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system .
A86	8.2.1.4.	Existing clearances are acce ptable where a replacement sewage system requires lesser clearances than those required in Part 8 for the existing sewage syste m.

Table .-B Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
B1	3.1.5.2. to 3.1.5.4 .; 3.1.5.8 .	Existing acceptable.
B2	3.1.5.9. to 3.1.5.12 .	Except for exposed f oamed plastics, existing acceptable.
B3	3.1.5.18. to 3.1.5.20 .; 3.1.5.25 .	Existing acceptable.
B4	3.1.7.1.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
B5	3.1.7.5.(3)	Existing assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
B6	3.1.8.5.(2)	(a) Existing functional and sound doors in existing buildings that are either hollow metal or kalamein and containing wired glass at least 6 mm thick and conformi ng to Sentence 3.1.8.16 .(2) are permitted in lieu of doors not required to exceed 45 min , (b) all existing functional and sound hollow metal or kalamein doors which c arry existing 1.5 h labels are acceptable in lieu of current 1.5 h labels and may contain wired glass panels not exceeding 0.0645 m², at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2), and (c) every fire door, window assembly or glass block used as a closure in a required fire separation shall be installed in conformance with good engineering practice.
B7	3.1.8.7., 3.1.8.8 . and 3.1.8.10 .	Fire dampers or fire stop f laps are not required to be installed in existing ducts at penetrations of existing fire separations .
B8	3.1.8.12 .(1)	For existing unlabelled doors in existing buildings , at least 45 mm sol id core wood or metal clad are acceptab le.
B9	3.1.8.13 .(1)	Existing functionally operabl e self-closing devices acceptable, including devices with “pause” hardware.
B10	3.1.8.14 .(1) and (2)	Between patient or inmate rooms, and corridors, existing “pause” type self-closing devices may be used as hol d-open devices where functionally operable.
B11	3.1.8.15 .	Existing functionally operable latching devices, excluding draw bolts, are acceptable.
B12	3.1.8.16 .(1) and (2)	Except in zone or exit fire s eparations not required to be greater than 1 h, existing wired glass installations are acceptable provided they are set in steel or metal clad frames.
B13	3.1.8.16 .(3)	Existing glass block acceptab le.
B14	3.1.8.17. to 3.1.8.19 .	Existing acceptable.
B15	3.1.9.5.(1) and (2)	Existing openings in existing ceiling membranes to remain. Existing o penings may be moved to another location in the same ceiling provided the aggregate area of openings does not increase and are not cumulative, and the existing opening is blocked up to provide the same rating as the ceiling assem bly.

Table .-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
B16	3.1.11.	Where the concealed space is being materially altered, provide smoke or heat detection in that space in lieu of fire blocks a nd tie into fire alarm system.
B17	3.1.14.; 3.1.15.	Existing roof assemblies and roof coverings acceptable.
B18	3.2.3.	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies no closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, to be restricted to the same fire compa rtment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable , or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is s prinklered .
B19	3.2.3.6.(3)	Existing roof soffit projections accepta ble.
B20	3.2.4.	(a) Existing fire alarm system may remain except that Article 3.2.4.5 . does not apply where the fire safety plan (as described in the Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Depart ment connection and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
B21	3.2.4.8.(2)(e)	Does not apply to existing ins tallations in buildings .
B22	3.2.4.9.(5)(c)	Does not apply to existing ins tallations in buildings .
B23	3.2.5.1.; 3.2.5.2 .	Existing access to an existing occupancy acceptable. Where the existing building is changed to a “B” occupancy , existing access are acceptable.
B24	3.2.5.3.(1)	Existing acceptable , except where a change in occupancy occurs to a “B1” or “B2” occupancy .
B25	3.2.5.3.(2)	Existing acceptable.
B26	3.2.5.4. to 3.2.5.6 .	Existing access route to existing occupancy is acceptable if the buil ding is sprinklered . Where existing building is changed to a “B” occupancy , access route shall be provided.
B27	3.2.5.7.; 3.2.5.18 .	Does not apply except where a change in occupancy occurs to a “B1” or “B2” occupancy , where occupan ts are not normally evacuated from the building .

Table .-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
B28	3.2.5.13 .	Existing sprinkler systems in existing build ings that do not conform to NFPA 13 may be altered, added to, or e xtended from the existing system without complying with NFPA 13, provided the system is operational and adequate with respect to coverage, water supply and controls, and provided the system is evaluated by a qualified designer.
B29	3.2.5.8. to 3.2.5.11 .	Does not apply except where a change in occupancy occurs to a Group B occupancy , where occupan ts are not normally evacuated from the building .
B30	3.3.1.9.	Existing width of public corridors of not less than 914 mm is acceptab le, except as provided in Sentence 3.3.3.3 .(2).
B31	3.3.1.11 .; 3.3.1.12 .	Existing door swings may remain in heritage buildings , existing or being restored, with no change in major occupancy a nd with occupant load no greater than 100.
B32	3.3.1.12 .	Existing doors acceptable.
B33	3.3.1.16 .	Existing acceptable.
B34	3.3.1.17 .	Existing non-conforming capacities of access to exits are acceptable, provided that the excessive capacity is no greater than 15% and , (a) corridor fire separations are rated to Code plus early warning system p rovided, or (b) there are sprinklers , plus smoke alarms in suites .
B35	3.3.1.18 .	Existing acceptable.
B36	3.3.1.20 .	Existing stained, etched, bevelled, leaded or figured glass acceptable.
B37	3.3.3.3.(1)	Existing dead-end corridors acceptable with 30 min fire separation of corridor plus sprinklering of floor area , provided the occupant load is not greater than 10 persons and travel distance not greater than 6 m plus corridor width to “ exit choice” p oint.
B38	3.3.3.7.	45 min fire separation acceptable.
B39	3.3.5.4.(1); 3.3.5.7 .(4)	Need not comply where a gasketed door and self closer are provided in the existi ng fire separation .
B40	3.4.1.8.	Existing stained, etched, bevelled, leaded or figured glass acceptable.
B41	3.4.2.5.(1)	Existing travel distance acceptable where floor area is sprinklered and provided fire separations comply with Part 3.
B42	3.4.3.2.(8)	Existing acceptable provided there is no change in occupancy to a “B2” or “B3”.
B43	3.4.3.3.	Existing acceptable.
B44	3.4.3.4.	Existing headroom clearance of not less than 1 980 mm is acceptable .
B45	3.4.5.1.(2) and (9)	Existing illuminated legible exit signs are accept able.
B46	3.4.6.2.	Existing acceptable, if visually apparent.
B47	3.4.6.3.(1)	Existing acceptable with rise no greater than 3.7 m.
B48	3.4.6.4.(1)	Existing acceptable provided there is no change in occupancy to a “B2” or “B3”.
B49	3.4.6.4.(2) to (4)	Existing acceptable.
B50	3.4.6.5.(3) to (13)	Existing acceptable.

Table .-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
B51	3.4.6.6.(2) to (5)	Existing acceptable.
B52	3.4.6.7.(1)	Existing acceptable.
B53	3.4.6.8.	Existing acceptable.
B54	3.4.6.9.	Existing acceptable where there is no change in major occupancy or increase in occupant load greater than 15%.
B55	3.4.6.11 .(1) to (4) and (6)	Existing acceptable.
B56	3.4.6.12 .	Existing acceptable in public heritage buildings .
B57	3.4.6.16 .(2) to (4)	Existing functionally operable panic hardware acceptable.
B58	3.4.6.18 .(4)(b)	Existing access to existing occupancy is acceptable Where the existing building is changed to a “B” occupancy , existing access is acceptable.
B59	3.4.7.2.	Combustible fire escape s which are protected from fire in accordance with Sentence 3.2.3.14 .(2) are permitted or may be reconstructed or recreated ( as in the case of a heritage building ). Where serving non-ambulatory persons, minimum width shall be 1 100 mm.
B60	3.5.1.	Existing acceptable, except where building is classified under Subsection 3.2.6.
B61	3.6.2.1.(7)	45 min fire separation acceptable.
B62	3.6.2.6.	Existing acceptable.
B63	3.6.2.7.(1)	2 h fire separation acc eptable.
B64	3.6.3.1.(1) to (5)	45 min fire separation acceptable.
B65	3.6.3.3.(1), (3), (4)(a), (5) and (10)	Existing acceptable.
B66	3.6.3.3.(2)(a)	45 min fire separation acceptable.
B67	3.6.4.	Existing acceptable, except where a change in occupancy occurs to a Group B occupancy .
B68	3.7.1.3.(1)	Existing acceptable.
B69	3.7.2.1.(2)	The minimum glass areas may be reduced by 50%.
B70	3.7.4.	Where the occupant load is increased by more than 15% above the capacity of the existing facilities, facilities to be added to accommodate the increase.
B71	3.8.1.2.	Existing accessible entrance acceptable . ( See C .A. B77) Existing curb ramp conforming to Sentence 3.8.3.2 .(3) is acceptable . Existing principal entrance acceptable, provided at least one barrier-free entr ance is available.
B72	3.8.1.3.(1)	Existing unobstructed width of 920 mm minimum is acceptable.

Table .-B (Cont’d) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
B73	3.8.1.3.(4)	Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length located not more than 30 m apart is acceptable .
B74	3.8.3.2.(3)(b)	Existing curb ramp acceptable , provided width not less than 1 200 mm .
B75	3.8.3.3.(1)	Existing doorway acceptable, provided not less than 800 mm wide.
B76	3.8.3.3.(11)(a)	Existing distance acceptable , provided not less than 1 200 mm plus the width of any door that swings into the space in the path of travel.
B77	3.8.3.4.(1)(a)	Existing ramp acceptable, provided not less than 870 mm between handr ails.
B78	3.8.3.8.(5)	Existing grab bar is acceptable.
B79	3.8.3.12 .	Existing universal washroom acceptable.
B80	3.8.3.13 .(2) (g)	Existing grab bar is acceptable.
B81	3.8.3.16 .	Existing drinking fountain conforming to Clauses 3.8.3.16 .(2)(a) and (b) acceptable .
B82	3.8.3.16 A.	Existing water bottle filling stations are acceptable.
B83	3.11.3.1 .(9)	Existing clear width acceptable , provided not less than 900 mm .
B84	3.11.3.1 .(14)	Existing painted line acc eptable.
B85	4.1.8.	The requirements under this Subsection do not apply.
B86	8.2.1.4.	Existing clearances acceptable where a sewage system is replaced with another sewage system within the same cl ass and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system .
B87	8.2.1.4.	Existing clearances are accep table where a replacement sewage system requires lesser clearances than those required in Part 8 for the existing sewage syste m.

Table .-C Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C1	3.1.4.7.	Existing heavy timber construct ion acceptable where construction is within 90% of member sizes listed in Part 3.
C2	3.1.5.2. to 3.1.5.4 .; 3.1.5.8 .	Existing acceptable.
C3	3.1.5.9. to 3.1.5.12 .	Except for exposed f oamed plastics, existing acceptable. To match existing, materials may be added from on or o ff site.
C4	3.1.5.18. to 3.1.5.20 .; 3.1.5.21 .	Existing acceptable.
C5	3.1.7.1.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
C6	3.1.7.5.(3)	Existing assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
C7	3.1.8.1.(2); 3.1.8.6 .(1) and (2)	Existing functional closures are acceptable and may be relocated within the same existing fire separa tion .
C8	3.1.8.5.(2)	(a) Existing functional and sound doors in existing buildings that are either hollow metal or kalamein and containing wired glass at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2) are permitted in lieu of doors not required to exceed 45 min , (b) all existing functional and sound hollow metal or kalamein doors which c arry existing 1.5 h labels are acceptable in lieu of current 1.5 h labels and may contain wired glass panels not exceeding 0.0645 m², at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2), and (c) every fire door, window assembly or glass block used as a closure in a required fire separation shall be installed in conformance with good engineering practice.
C9	3.1.8.7. to 3.1.8.10 .	Except for hotels , fi re dampers or fire stop flaps are not required to be installed in existing ducts at penetrations of existing fire separations .
C10	3.1.8.12 .(1)	For existing unlabeled doors in existing buildings , at least 45 mm s olid core wood or metal clad are acce ptable. Except for residential occupancies , existing closure rating of 20 min will not be required where the entire floor area is sprink lered .
C11	3.1.8.14 .(1) and (2)	In retirement homes , between a suite and a public corridor , existing ‘pause’ type se lf- closing devices may be u sed as hold-open devices where functionally operable.
C12	3.1.8.15 .	Existing functionally operable latching devices, excluding draw bolts, are acceptable.
C13	3.1.8.16 .	Existing transoms or sidelights located in fire separations not r equired to be greater than 1 h may be retained if wired glass , at least 6 mm thick , is securely fixed to a wood frame of at least 50 mm thickness with steel stops. Operable transoms shall be fixed closed.
C14	3.1.8.17. to 3.1.8.19 .	Existing acceptable.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C15	3.1.11.	Where the concealed space is being materially altered, provide smoke or heat detection in that space in lieu of fire blocks a nd tie into fire alarm system.
C16	3.2.3.	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies not closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, shall be restricted to the same fire compar tment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable, or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is sprinklered.
C17	3.2.3.6.(3)	Existing roof soffit projections accepta ble.
C18	3.2.4.	(a) Existing fire alarm system may remain except that Article 3.2.4.5 . does not apply where the fire safety plan (as described in the Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Department connection, and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
C19	3.2.4.8.(2)(e)	Does not apply to existing ins tallations in buildings .
C20	3.2.4.9.(5)(c)	Does not apply to existing ins tallations in buildings .
C21	3.2.4.20 .	Except for retirement homes , such smoke alarms may be battery operated.
C22	3.2.5.1.; 3.2.5.2 .	Existing acceptable.
C23	3.2.5.3.(1)	Existing access acceptable.
C24	3.2.5.3.(2)	Existing acceptable.
C25	3.2.5.4. to 3.2.5.6 .	(a) For buildings 6 storeys and less, existing access to existi ng occupancy is acceptable, and (b) where existing building is changed to a “C” occupancy , an access route shall be provided, or the existing access is acceptable provided the building is sprinklered .
C26	3.2.5.7.	Existing water supply and hydrants are acceptable in buildin gs up to 6 storeys in building height .

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C27	3.2.5.8. to 3.2.5.11 .	Does not apply to buildings 4 storeys and less. For existing buildin gs over 4 storeys in building height , existing standpipe and hose systems water supply is acceptable provided it can deliver a minimum flow rate of 265 L/ min for 30 min at 345 kPa ( gauge ) at the two highest and most remote hose valves , with not less than 132 L/min from each of the two simultaneously.
C28	3.2.5.12 .	Existing sprinkler systems in existing build ings that do not conform to NFPA 13 may be altered, added to, or e xtended from the existing system without complying with NFPA 13, provided the system is operational and adequate with respect to coverage, water supply and controls, and provided the system is evaluated by a qualified designer.
C29	3.3.1.4.(1); 3.3.4.2 .(1)	30 min is acceptable to separate corridors or exits in buildings not exceeding 6 storeys in building height , except that 45 min i s required for exits in buildings exceeding 3 storeys in building height . For buildings exceeding 6 storeys i n building height , 30 min is acceptable where smoke detectors are installed in corrido rs, except 1 h is required in exits . 30 min is acceptable to separate public corridors , exits or suites in hotels , provided fir e detectors are installed in every room in a suite and in every room not located in a suite , other than corridors, washrooms, closets in suites , saunas, refrigerated areas and swimming pools.
C30	3.3.1.5.(1)(c); Tables 3.3.1.5 .-A and 3.3.1.5 .-B	In Column 2, maximum area of room o r suite to be unlimited.
C31	3.3.1.9.	Existing width of public corridors of not less than 914 mm is acce ptable.
C32	3.3.1.11 .; 3.3.1.12 .	Existing door swings may remain in heritage buildings , existing or being restored, with no change in major occupancy and with occupant load no greater than 100.
C33	3.3.1.13 .	Existing doors acceptable, provided not less than 600 mm wid e.
C34	3.3.1.14 .	Existing curved or spiral stairs acceptable.
C35	3.3.1.17 .	Existing non-conforming capacities of access to exits are acceptable, provided that the excessive capacity is no greater than 15% and , (a) corridor fire separations are rated to Code plus early warning system p rovided, or (b) there are sprinklers , plus smoke alarms in suites .
C36	3.3.1.18 .	Does not apply to heritage buildi ngs .
C37	3.3.1.20 .	Existing stained, etched, bevelled, leaded or figured glass acceptable.
C38	3.3.4.2.(3)(b)(i) 3.3.4.2.(3)(b)( ii ), ( iii )	30 min fire separation accepta ble. 45 min fire separation acceptable.
C39	3.3.4.4.(4) and (5)	For buildings 6 storeys and less, doorway from dwelling unit will be permitted to open directly into exit stairway or interior corridor served b y a single exit if a fire alarm system complying with Subsection 3.2.4. is installed and the dwelling unit has a second and separate means of egress .
C40	3.3.5.4.(1) and 3.3.5.7 .(4)	Need not comply where a gasketed door and self closer are provided in the existi ng fire separation .

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C41	3.4.1.4.	Except for hotels and retirement homes , the following types of exits may also be used for buildings not over 6 storeys in building height : (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to ground le vel, (b) areas of refuge where fire service rescue is possible and that comp ly with Measure L of Sentences (4) to (10), (18) and Clauses (20)(a), (b) and (d) in MMAH Supplementary Standard SB-4, “Measures for Fire Safety in High Buildings ”.
C42	3.4.1.8.	Existing stained, etched, bevelled, leaded or figured glass acceptable.
C43	3.4.2.5.(1)	Existing travel distance acceptable where floor area is sprinklered and provided fire separations comply with Part 3.
C44	3.4.3.2.(7)	Existing width of exits acceptable provided the occupant load is not m ore than 15% above the exit capacity.
C45	3.4.3.3.	Except for heritage buildings , existing acceptable, provided not less than 800 mm.
C46	3.4.3.4.	Existing headroom clearance of not less than 1 980 mm is acceptable .
C47	3.4.4.1.(1)	Except for exits , no rating required where floor areas are spinklered .
C48	3.4.4.1.	Fire separations of exits permitted in buildings : (a) 30 min , up to 3 storeys in building height , (b) 45 min , in hotels up to 3 storeys in building height , (c) 45 min , up to 6 storeys in building height , (d) 1 h, over 6 storeys in building height .
C49	3.4.4.4.(8)	Existing washrooms opening directly into an exit stairwell shall be separated from the exit stairwell by a 45 min closure .
C50	3.4.5.1.(2) and (9)	Existing illuminated legible exit signs are accept able.
C51	3.4.6.1.	Existing acceptable.
C52	3.4.6.2.	Existing acceptable, if visually apparent.
C53	3.4.6.3.(1)	Existing acceptable with rise no greater than 3.7 m.
C54	3.4.6.4.(1) to (3)	Existing acceptable.
C55	3.4.6.4.(4) and (5)	Existing acceptable.
C56	3.4.6.5.(3) to (13)	Existing acceptable.
C57	3.4.6.6.(2) to (4)	Existing acceptable.
C58	3.4.6.7.(1)	Existing acceptable.
C59	3.4.6.8.	Existing acceptable.
C60	3.4.6.9.	(a) Except for retirement homes , existing acceptable. (b) For retirement homes , existing acceptable provided there is no change in major occupancy or increase in occupant load greater than 15%.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C61	3.4.6.10 .(2) to (6)	Existing acceptable.
C62	3.4.6.11 .(1) to (3)	Existing acceptable.
C63	3.4.6.12 .	Existing acceptable in heritage buildings provided the occupant load is not more than 60.
C64	3.4.6.16 .(1) to (4)	Existing functionally operable panic hardware acceptable.
C65	3.4.7.2.	Except for retirement homes , combustible fire escapes which are protected from fire in accordance with Sentence 3.2.3.13 .(2) are permitted or may be reconstructed or recreated (as in the case of a heritage building ).
C66	3.5.1.	Existing acceptable except where building is classified under Subsection 3.2.6.
C67	3.6.2.1.(7)	45 min fire separation acceptable.
C68	3.6.2.2.	Existing acceptable wher e explosion-resistant construction or venting is provided.
C69	3.6.2.6.	Existing acceptable.
C70	3.6.2.7.(1)	2 h fire separation acc eptable.
C71	3.6.3.1.(1) to (5)	45 min fire separation acceptable up to 6 storeys .
C72	3.6.3.3.(2)	Where 2 h fire separation is required ,1 h is acceptable . Except for linen discharge rooms where 1 h fire separation is required , 45 min is acceptable.
C73	3.6.3.3.(4) and (5)	Existing sizes acceptable.
C74	3.6.3.3.(9)	Where 2 h fire separation is required ,1 h is acceptable .
C75	3.6.4.2.	Except for retirement homes , ceiling fire separation need not have a fire-res istance rating where sprinklering , subject to C .A. C27, of fire compartments on both sides of vertical fire separation is provided and where such fire sep aration is not required to exceed 1 h.
C76	3.6.4.3.(1)	Existing to meet flame-spread rating of 25 or to be sprinklered .
C77	3.6.4.4. to 3.6.4.6 .	Existing access acceptable.
C78	3.7.1.1.(2)	Minimum room height shall be not less than 1 950 mm over the required floor area and any location that would normally be used as a means of egress .
C79	3.7.2.1.	(a) Where windows are not used as means of egress and where they do not conflict with ventilation requirements, the minimum glass areas as shown in Table 9.7.2.3. may be reduced by 50%, or (b) an existing room converted to an inte rior room, created by an addition, shall not require a window, provided there is an opening in a dividing wall occ upying not less than 30% of the separating plane to an adjoining room, where the adjoining room has a minimum of 5% window area of the combined floor areas, and provided the required ventilation for the combined room is maintained.
C80	3.7.4.	Where the occupant load is increased by more than 15% above the capacity of the existing facilities, facilities to be added to accommodate the increase.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C81	3.8.1.2.	Existing accessible entrance acceptable . ( see C .A. C88) Existing curb ramp conforming to Sentence 3.8.3.2 .(3) is acceptable . Existing principal entrance acceptable, provided at least one barrier-free ent rance is available.
C82	3.8.1.3.(1)	Existing unobstructed width of 920 mm minimum is acceptable.
C83	3.8.1.3.(4)	Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length located not more than 30 m apart is acceptable .
C84	3.8.3.2.(3)(b)	Existing curb ramp acceptable , provided width not less than 1 200 mm .
C85	3.8.3.3.(1)	Existing doorway acceptable, provided not less than 800 mm wide.
C86	3.8.3.3.(11)(a)	Existing distance acceptable , provided not less than 1 200 mm plus the width of any door that swings into the space in the path of travel.
C87	3.8.3.4.(1)(a)	Existing ramp acceptable, provided not less than 870 mm between handr ails.
C88	3.8.3.8.(5)	Existing grab bar is acceptable.
C89	3.8.3.12 .	Existing universal washroom acceptable.
C90	3.8.3.13 .(2) (g)	Existing grab bar is acceptable.
C91	3.8.3.16 .	Existing drinking fountain conforming to Clauses 3.8.3.16 .(2)(a) and (b) acceptable .
C92	3.11.3.1 .(9)	Existing clear width acceptable , provided not less than 900 mm .
C93	3.11.3.1 .(14)	Existing painted line acc eptable.
C94	4.1.8.	The requirements under this Subsection do not apply.
C95	6.3.1.1.(2)	Required outdoor air rates may be provided by mechanical, natural or com bination of natural and mechanical means.
C96	6.3.2.3.; 6.3.2.6 .; 6.3.2.6 A.; 6.3.2.10 .	Existing acceptable.
C97	6.3.2.7.(1)	In a building containing not more than four dwellin g units or residential suites , the existing heating or air-conditioning system may be altered to serve more than one dwelling unit or suite , provided smoke alarms are installed in each dwelling unit or suite and provided a smoke detector is installed in the suppl y or return air duct system serving the enti re building which would turn off the fuel supply and electrical power to the heating system upon activation of such detector.
C98	6.3.2.9.	Existing openings, grilles and diffusers acceptable.
C99	6.3.3.	Existing acceptable, prov ided products of combustion are safely vented.
C100	6.5.1.1.	Existing acceptable.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C101	6.9.4.4.(1)	Carbon monoxide alarms may be battery operated or plugged into an e lectrical outlet.
C102	8.2.1.4.	Existing clearances acceptable where a sewage system is replaced with another sewage system within the same cl ass and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system .
C103	8.2.1.4.	Existing clearances are acce ptable where a replacement sewage system requires lesser clearances than those required in Part 8 for the existing sewage system .
C104	9.3.2.1.	Sound used lumber may be acceptable for reuse without a grade stamp provided that : (a) visual examination shows no excessive weakening by holes, notches, nail spli ts or other damage, (b) where the grade or species is unknown, the minimum grade shall apply for span table use, and (c) lumber has not been subjected to te rmite infestation.
C105	9.5.3.1.	Except for secondary suites , in a dwelli ng unit , (a) minimum room height shall not be less than 1 950 mm over the required floor area and in any location that would normally be used as a means of egress , or (b) minimum room height shall not be less than 2 030 mm over at least 50% of the required floor area, provided that any part of the floor having a clear he ight of less than 1 400 mm shall not be considered in computing the required floor area.
C106	9.5.11.1 .	Doors may be lesser heights to suit ceiling heights.
C107	9.5.11.2 .	Existing acceptable , provided not less than 600 mm .
C108	9.6.1.2.(2) and (3); 9.6.1.4 .(1) and (2)	Existing doors and sidelights being reused or relocated need not conform if identified or protected.
C109	9.6.1.4.(3)	Existing acceptable, if marked to indicate their existence and position.
C110	9.7.2.3.	(a) Where windows are not used as a means of egress and where they do not conflict with ventilation requirements, the minimum glass areas as shown in Table 9.7.2.3 . may be reduced by 50%, and (b) an existing room converted to an inte rior room, created by an addition, shall not require a window, provided there is an opening in a dividing wall occ upying not less than 30% of the separating plane to an adjoining room, where the adjoining room has a minimum of 5% w indow area of the combined floor areas, and provided the required ventilation for the combined room is maintained.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C111	9.7.4.	Existing acceptable.
C112	9.8.1. to 9.8.4 .	Replacement or extension of existing stair systems shall be exempt from the provisions of these Subsections, except that they shall have: (a) a minimum width between wall faces of 700 mm , and (b) a minimum clear height over tread nosing or landing of 1 800 mm .
C113	9.8.4.3. and 9.8.4.7 .	Existing curved or spiral stairs are accepta ble.
C114	9.8.4.5.	Where a stair complies with Subsection 9.8.4., an extension to a stair may contain two sets of winders provided that they are separated by at least three treads or a landing.
C115	9.8.5.1.(2)	Existing ramps acceptable, where practical.
C116	9.8.7.	Existing handrails acceptable, unless considered unsafe by chief building official .
C117	9.8.8.	Existing guards accep table, unless considered unsafe by chief building official .
C118	9.8.9.6.(4)	Existing acceptable.
C119	9.9.2.1.(1) to (2.1)	Except for hotels , the following types of exits may also be used: (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to grade, (b) areas of refuge approved by the chief building official , where fire service rescue is possible , or (c) combustible or noncombusti ble exterior stairways or fire escapes which are protected in accordance with Sentence 3.2.3.13 .(2). These may be reconstructed or recreated (as in the case of a heritage building ).
C120	9.9.2.1.(4)	Except for hotels , existing acceptable.
C121	9.9.3.2.	(a) In a building containing not more than four dwelling units , the width of every exit facility may be as the existing , but not less than 800 mm , or (b) in a building containing more than four dwelling units , the width of every exit facility may be as the existing , but not less than 900 mm .
C122	9.9.3.3.	(a) In a building containing not more than four dwelling un its , the minimum width of a public corridor may be 800 mm , or (b) in a building containing more than four dwelling units , the minimum width of a public corridor may be 900 mm .
C123	9.9.3.4.	Existing clear height of not less than 1 950 mm is acceptable .
C124	9.9.4.2.	Except as permitted in C .A. C136, in a building containing not more than four dwelling units or suites , one exit need not be separated from the remainder of the building at the first s torey where there are one or more other exits complying with C.A. C122.
C125	9.9.4.2.(1) and (2)	30 min fire separation acceptabl e.
C126	9.9.5.4.	Existing acceptable.
C127	9.9.5.8.	Existing acceptable provided minimum 45 min fire separation and where explosion- resistant construction or ventin g is provided.
C128	9.9.5.9.	Existing acceptable, provided that the enclosure has a 45 min fire-resistance rating .

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C129	9.9.6.1.	Except for hotels , existing acceptable.
C130	9.9.6.2.	Existing clear opening height of not less than 1 950 mm is acceptable .
C131	9.9.6.3.	Existing door widths are acceptable , provided exit widths conform to C .A. C117.
C132	9.9.6.5.	Existing door swings acceptable. Existing acceptable in public heritage buildings , where approved by chief building official .
C133	9.9.6.6.(1)	Where exit doors open onto a landing, they shall not extend beyond the face of the first riser.
C134	9.9.6.8.	Existing functionall y operable passage or panic hardware acceptable.
C135	9.9.7.4.(1)(a)	Maximum area of existing room or suite does n ot apply.
C136	9.9.7.5.	Except as provided in C .A. C139, in a single dwelling unit or a house with a secondary suite , the Cod e requirement applies.
C137	9.9.8.2.(1)	Existing travel distance acceptable where floor area is sprinklered and provided fire separations comply with Part 9.
C138	9.9.8.5.	In a building containing not more than four dwelling un its or suites , existing glazed solid wood doors to lobby may remain in lieu of new 20 minut e doors, provided the fire separations for the floor above or below are provided as per C .A. C154, and a second means of egress from the dwelling units complies with the Code requirements.
C139	9.9.9	In a single dwelling unit or a house with a secondary suite , exit requirements a re acceptable if at least one of the following conditions exists: (a) a door, including a sliding door, that opens directly to the exte rior from a dwelling unit , serves only that dwelling unit and has reasonable access to ground level, and the dwelling units are equipped with smoke alarms install ed in conformance with Subsection 9.10.19., (b) an exit that is accessible to more than one dwelling unit an d provides the only means of egress from each dwelling u nit , provided that the means of egress is separated from the remainde r of the building and common areas by a fire separation having a 30 min fire-resistance rating and provided further that the required access to exit from any dwelling unit cannot be through another dwelling unit , service room or other occupancy , and both dwelling units and common areas are provided with smoke alarms that are installed in conformance with Subsection 9.10.19. and are interconnected , or (c) access to an exit from one dwelling unit which leads through another dwelling unit where, (i) an additional means of escape is provided through a window that conforms to the following: (A) the sill height is not more than 1 000 mm above or below adjacent ground level, (B) the window can be opened from the inside without the use of tools, (C) the window has an individual unobstructed open portion havi ng a minimum area of 0.38 m² with no dimension less than 460 mm ,

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C139 ( Cont 'd)	9.9.9.	(D) the sill height does not exceed 900 mm above the floor or fixed steps , (E) where the window opens into a window well, a clearance of not less than 1 000 mm shall be provided in front of the window , and (F) smoke alarms are installed in every dwelling unit and in com mon areas in conformance with Subsection 9.10.19. and are interconnected , (ii) an additional means of escape is provided through a window that conforms to the following: (A) the window is a casement window not less than 1 060 mm high , 560 mm wide , with a sill height not more than 900 mm above the inside floor, (B) the sill height of the window is not more than 5 m above adjacent ground level, and (C) smoke alarms are installed in every dwelling unit an d in common areas in conformance with Subsection 9.10.19. and are interconnected , or (iii) the building is sprinklered and the dwelling units are equipped with sm oke alarms installed in conformance with Subsection 9.10.19.
C140	9.9.10.1 .	In a single dwelling unit or a house with a secondary suite , existing acceptab le, where there is direct access to the exterior.
C141	9.9.11.	In a single dwelling unit or a house with a secondary suite , the requirements under this Subsection do not a pply.
C142	9.9.11.3 .	Existing illuminated legible signs are acceptable for exit signs, if approved by chief building official .
C143	9.9.12.	In a single dwelling unit or a house with a secondary suite , the requirements under this Subsection apply only where the condition described in (b) of C .A. C139 exists .
C144	9.10.1.1 .	Assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
C145	9.10.1.3 .(8) to (10)	Existing installations acceptable subject to C .A. C26, C27 and C 28.
C146	9.10.3.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
C147	9.10.5.1 .	(a) Existing openings in existing wall or ceiling membranes to remain. (b) Existing openings may be moved to another locatio n in the same wall or ceiling, provided the aggregate area of openings does not increase and are not cumulative, and the existing opening is blocked up to provide the same rating as the existing wall or ceiling assembly.
C148	9.10.6.2 .	Existing heavy timber construct ion acceptable where construction is within 90% of member sizes listed in Part 3.
C149	9.10.7.	Existing acceptable for heritage b uildings , subject to approval of chief building official .

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C150	9.10.8.1 .; 9.10.8.3 .; 9.10.8.8 .	(a) Except as provided in (b) and (c), 30 min rating is acceptable . (b) In a house with a secondary suite , 15 min horizontal fire separation is acceptable where, (i) smoke alarms are installed in every dwellin g unit and in common areas in conformance with Subsection 9.10.19., and (ii) smoke alarms are interconn ected. (c) In a house with a secondary suite , the fire - resistance rating of the fire separation is waived where the building is sprinklered throughout.
C151	9.10.8.4 .	Assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
C152	9.10.9.7 .; 9.10.9.11 .	Existing acceptable in existing fire separat ions .
C153	9.10.9.12 .(1)	Ceiling fire separation need not have a fire-resistance rating where sprinklerin g, subject to C .A. C27, of fire compartments on both sides of vertical fire separation is provided and where such fire s eparation is not required to exceed 1 h.
C154	9.10.9.13 .(1)	Except for hotels, 30 min fire separation ac ceptable.
C155	9.10.9.13 .(2)	In lieu of the 2 h fire separation , sprinklers may b e used in the mercantile occupancy or medium-hazard industrial occupancy , with a 1 h fire separation .
C156	9.10.9.16 .(1) and (3); 9.10.9.17 .(1)	(a) Except as provided in (b) and (c), 30 min fire separation is acceptable . (b) In a house with a secondary suite , 15 min horizontal fire separation is acceptable where, (i) smoke alarms are installed in every dwellin g unit and in common areas in conformance with Subsection 9.10.19., and (ii) smoke alarms are interconn ected. (c) In a house with a secondary suite , the fire - resistance rating of the fire separation is waived where the building is sprinklered throughout.
C157	9.10.10.3 .	(a) Except as provided in (b) and (c) and in Articles 9.10.10.5 . and 9.10.10.6 ., 30 min fire separation is acceptable . (b) In a house with a secondary suite , the fire - resistance rating of the vertical fire separation is waived where, (i) smoke alarms are installed in every dwellin g unit and in common areas in conformance with Subsection 9.10.19., and (ii) smoke alarms are interconn ected. (c) In a house with a secondary suite , the fire - resistance rating of the vertical fire separation is waived where service rooms are sprinklered .
C158	9.10.11.2 .(1)	In an individual dwelling unit or a house with a secondary suite , a party wall with 1 h fire-resistance rating is acceptable.
C159	9.10.13.1	Existing functional closures are acceptable subject to C .A.C8 and C 160.
C160	9.10.13.2 .(1)	In an individual dwelling unit or a house with a secondary suite , exi sting unlabelled doors at least 45 mm solid core wood or metal clad are acceptable. For existing closures , ratings of 20 min will not be required where the entire floor area is sprinklered .

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C161	9.10.13.2 .(1)	In a building containing not more than four dwelling u nits or suites , existing glazed solid wood doors to corridors may remain in lieu of new 20 mi n doors, provided they are not located in a de ad-end corridor.
C162	9.10.13.3 .	Existing acceptable provide d that wood door frames are secured with hinge screws going through frame into the stud.
C163	9.10.13.5 .	Existing wired glass acceptable.
Existing transoms or sidelights located in required fire separa tions may be retained if wired glass , at least 6 mm thick , is securely fixed to a wood frame of at least 50 mm thickness with steel stops . Operable transoms shall be fixed closed.
C164	9.10.13.6 .	Existing steel door frames acceptable.
C165	9.10.13.7 .	Existing glass block acceptab le.
C166	9.10.13.8 .	Existing sizes acceptable.
C167	9.10.13.9 .	Existing operable latches acceptable.
C168	9.10.13.10 .(1)	Existing functional ly operable self-closing devices acceptable.
C169	9.10.13.11 .	Existing operable self-releasing ele ctromagnetic hold-open device acceptable, and except for hotels, fusible link hold-open devices acceptable.
C170	9.10.13.12 .	Existing swings acceptable.
C171	9.10.13.13 .(1)	Except as permitted in C .A. C172, in a building containing not more than four dwelling units , the existing heating or air-conditioning system may be altered t o serve more than one dwelling unit , provided smoke alarms are installe d in each dwelling unit and provided a smoke detector is installed in the supply or retur n air duct system serving the entire building which would turn off the fuel supply and electrical power to the heating system upon activation of such detector.
C172	9.10.13.13 .(1)	In detached houses, semi-detached houses, townhouses and row houses containing not more than two dwelling units , or houses with a secondary suite , existing acceptable.
C173	9.10.13.14 .; 9.10.5.1 .	Except as permitted in C .A. C174, in a building containing not more than four dwelling units , the existing heating or air-conditioning system may be altered to serve more than one dwelling unit , provided smoke alarms are installe d in each dwelling unit and provided a smoke detector is installed in the supply or retur n air duct system serving the entire building which would turn off the fuel supply and electrical power to the heating system upon activation of such detector.
C174	9.10.13.14 .; 9.10.5.1 .	In an individual dwelling unit or a house with a secondary suite , existing acc eptable.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C175	9.10.14.2 .(2) and (3); 9.10.14.4 .(2); 9.10.15.2 .(3) and (4); 9.10.15.4 .(9)	Where an addition to an existing residential building has its exposing building face further distant from the line than the existing exposing building face and the limit ing distance is at least 1 200 mm, the total area of allowable unprotected openings may be determined under Sentence 9.10.14.2 .(2) or 9.10.15.2 .(3) for the combined new and existing exposing building faces and, (a) where the existing exposing building face has no unprotected openings, or the existing unprotected openings are to be filled in, the total allowable area of unprotected openings may be installed in the new exposing building fa ce, or (b) where the existing unprotected openings are to remain, (i) their area shall be deducted from the total allowable area of unprotected openings , and the balance may be installed in the ne w exposing building face , and ( ii ) Sentences 9.10.14.2 .(3) and 9.10.14.4 .(2) or Sentences 9.10.15.2 .(4) and 9.10.15.4 .(9) apply only to the new exposing building face .
C176	9.10.14.4 .; 9.10.15.4 .	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies no closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, to be restricted to the same fire compa rtment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable , or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is s prinklered .
C177	9.10.16.2 .(1)	Where balloon framing is exposed during renovation, fire blocks shall be provided.
C178	9.10.18.	(a) Subject to approval by the chief building official , existing fire alarm system may remain where the fire safety plan (as described in th e Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Department connection, and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
C179	9.10.19.4 .	Smoke alarms may be battery opera ted.
C180	9.10.20.	Existing access acceptable.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C181	9.11.1.1 .	Where a house contai ns a secondary suite , each dwelling unit shall be separated from every other space in the house in which noise may b e transmitted by: (a) construction (i) whose joist spaces are filled with sound-absorbing material of not less than 150 mm nominal thickness , (ii) whose stud spaces are filled with sound-absorbing material, ( iii ) having a resilient channel on one side of the separation spaced 400 or 600 mm o .c., and , ( iv ) having not less than 12.7 mm thick gypsum board on ceilings and on both sides of walls, (b) construction providing an STC rating of not less than 43, or (c) a separating assemb ly and adjoining constructions, which together provide an ASTC rating of not less than 40.
C182	9.14.2.1 .(1. 1)	Existing acceptable.
C183	9.18.2.	Existing access acceptable.
C184	9.18.3.	Existing vents and ventilation acceptable.
C185	9.19.	Existing acceptable.
C186	9.20.2.2 .	Used masonry may be reused for patching and filling openings to match adja cent work. Used interior brick may not be used for e xterior applications.
C187	9.20.3.	Archaic mortars may be used to match existing jointing.
C188	9.20.4.1 .	Sound jointing techniques ma y be employed to match existing archaic joints.
C189	9.20.12.1 .	Corbelling may be constructed to match existing or o riginal details, provided that it is structurally adequate for the proposed use.
C190	9.21.	Existing acceptable, provided the products of combustion are safely vented and provided no fire hazard is created.
C191	9.22.1. to 9.22.7 .	Sound period materials, designs and techniques may be employed in recreated fireplaces, provided no fire hazard is created. Existing need not comply wi th Article 9.22.1.4 .
C192	9.23.	Existing acceptable.
C193	9.24.	Existing acceptable.
C194	9.25.	A vapour barrier may con sist of paint or other coating with specified perm rating such as two coats of leafing aluminum pigmented paint.
C195	9.26.	Existing acceptable , except when removing and replacing shingles, comply with the eave protection requirements of Subsection 9.26.5.
C196	9.27.	Existing acceptable.
C197	9.28.	All replacement or recreation of existing stucco may be compatible with the existing materials and application.

Table .-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
C198	9.29.4.	Existing acceptable. All replacement or recreation of existing plaster may be compatible with the existing materials and application.
C199	9.32.	In an individual dwelling unit or a house with a secondary suite , r ooms or spaces shall be ventilated by natural means in accordance with Subsection 9.32.2. or by providing adequate mechanical ventilation.
C200	9.32.3.9 C.	Carbon monoxide alarms may be battery operated or plugged into an e lectrical outlet.
C201	9.33.1.1 .	In a building containing not more than four dwellin g units , the existing heating or air- conditioning system may be altered to serve more than one dwelling unit , provided smoke alarms are installed in each dwelling unit and provided a smoke detector is installed in the supply or return air duct system serving the entire building which would turn off the fuel supply and electrical power to the heating system upon activation of such detector.
C202	9.33.5.3 .	Sound, used or antique appliances are acceptable, provided that: (a) visual examination sho ws no excessive weakening by corrosion or other damage, (b) no structural parts are missing , (c) no cracks are present in the components intended to support the appl iance or enclose the fire, and (d) loading and ash removal door latches and hinges hold the d oor closed.
C203	9.33.6.5 .(1); 9.33.6.6 .(1) to (3), (5), (11) and (12)	Existing acceptable.
C204	9.33.6.6 .(8)	Where the duct system is being altered, lesser amounts and extent of insulation will be permitted.
C205	9.33.6.13 .(7. 1)	In a building containing not more than four dwellin g units or residential suites , the existing heating or air-conditioning system may be altered to serve more than one dwelling unit or suite , provided smoke alarms are installed in each d welling unit or suite and provided a smoke detector is installed in the suppl y or return air duct system serving the enti re building which would turn off the fuel supply and electrical power to the heating system upon activation of such detector.
C206	9.38.	Sound used materials shall be acceptable for reuse, subject to the following limitations: (a) visual examination shows no excessive weakening by holes, notches, nail spli ts or other damage, and (b) logs have not been subjected to termite infestation.
C207	12.2.1.2 .(3)	(a) Where the framing systems are being altered to match the existing framing, lesser amounts and extent of insulation and vapour barrier is acceptable. (b) Existing acceptable for Article 2.1.1.9 . of MMA Supplementary Standard SB -12, “Energy Efficiency fo r Housing” . (c) Existing previously occupied log houses that are dismantled and reconstr ucted are exempt from Article 3.1.1.6 . of MMA Supplementary Standard SB -12, “Energy Efficiency for Housing”.

Table .-D/E Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 1	3.1.4.7.	Existing heavy timber construct ion acceptable where construction is within 90% of member sizes listed in Part 3.
DE 2	3.1.5.2. to 3.1.5.4 .; 3.1.5.8 .	Existing acceptable.
DE 3	3.1.5.9. to 3.1.5.12 .	Except for exposed f oamed plastics, existing acceptable. To match existing, materials may be added from on or off site.
DE 4	3.1.5.18. to 3.1.5.20 .; 3.1.5.25 .	Existing acceptable.
DE 5	3.1.7.1.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
DE 6	3.1.7.5.(3)	Existing assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
DE 7	3.1.8.1.(2); 3.1.8.6 .	Existing functional closures are acceptable and may be relocated within the same existing fire separa tion .
DE 8	3.1.8.5.(2)	(a) Existing functional and sound doors in existing buildings that are either hollow metal or kalamein and containing wired glass at least 6 mm thick and conformi ng to Sentence 3.1.8.16 .(2) are permitted in lieu of doors not required to exceed 45 min , (b) all existing functional and sound hollow doors which carry existing 1.5 h labels are acceptable in lieu of current 1.5 h labels and may contain wired glass panels not exceeding 0.0645 m², at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2), and (c) every fire door, window assembly or glass block used as a closure in a required fire separation shall be installed in conformance with good engineering practi ce.
DE 9	3.1.8.7., 3.1.8.8 . and 3.1.8.10 .	Fire dampers or fire stop f laps are not required to be installed in existing ducts at penetrations of existing fire separations .
DE 10	3.1.8.12 .(1)	For existing unlabelled doors in existing buildings , at least 45 mm sol id core wood or metal clad are acceptab le.
DE 11	3.1.8.15 .	Existing functionally operable latching devices, excluding draw bolts, are acceptable.
DE 12	3.1.8.16 .	Existing transoms or sidelights located in required fire separations may be retained if wired glass, at least 6 mm thick, is securely fixed to a wood f rame of at least 50 mm thickness with steel stops . Operable transoms shall be fixed closed.
DE 13	3.1.8.17. to 3.1.8.19 .	Existing acceptable.
DE 14	3.1.11.	Where the concealed space is being materially altered, smoke or heat detection in that space in lieu of fire blocks and tied into fire alar m system is acceptable.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 15	3.2.3.	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies not closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, shall be restricted to the same fire compart ment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable, or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is s prinklered.
DE 16	3.2.3.6.(3)	Existing roof soffit projections accepta ble.
DE 17	3.2.3.17 .	Need not comply for “E” occupancy .
DE 18	3.2.4.	(a) Existing fire alarm system may remain except that Article 3.2.4.5 . does not apply where the fire safety plan (as described in the Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Department connection, and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
DE 19	3.2.4.8.(2)(e)	Does not apply to existing ins tallations in buildings .
DE 20	3.2.4.9.(5)(c)	Does not apply to existing ins tallations in buildings .
DE 21	3.2.5.1.; 3.2.5.2 .	Existing acceptable.
DE 22	3.2.5.3.	Existing access acceptable.
DE 23	3.2.5.4. to 3.2.5.6 .	Existing acceptable provided the building is sprinklered throughout.
DE 24	3.2.5.7.	Does not apply, except where a change in major occupancy occurs from a lesser hazard index .
DE 25	3.2.5.8. to 3.2.5.11 .	Does not apply to buildings 6 storeys and less. Does not apply to sprinklered buildings .
DE 26	3.2.5.13 .	Existing sprinkler systems in existing build ings that do not conform to NFPA 13 may be altered, added to, or e xtended from the existing system without complying with NFPA 13, provided the system is operational and adequate with respect to coverage, water supply and controls, and provided the system is evaluated by a qualified designer.
DE 27	3.3.1.5.(1)(c); Tables 3.3.1.5 .- A and 3.3.1.5 .-B	In Column 2, maximum area of room o r suite to be unlimited.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 28	3.3.1.9.(1)	Existing width of public corridors of not less than 914 mm is acce ptable.
DE 29	3.3.1.11 .; 3.3.1.12 .	Existing door swings may remain in heritage buildings , existing or being restored, with no change in major occupancy a nd with occupant load no greater than 100.
DE 30	3.3.1.13 .	Existing doors acceptable, provided not less than 600 mm wid e.
DE 31	3.3.1.16 .	Existing curved stairs accept able.
DE 32	3.3.1.17 .	Existing non-conforming capacities of access to exits are acceptable, provided that: (a) the increase in occupant load is not greater than 15%, (b) the corridor fire separations are rated to Code , and (c) early warning systems are provided , or (d) there are sprinklers , plus smoke alarms in suites .
DE 33	3.3.1.18 .	Does not apply to heritage buildi ngs .
DE 34	3.3.1.20 .	Existing stained, etched, bevelled, leaded or figured glass acceptable.
DE 35	3.3.5.4.; 3.3.5.7 .( 4)	Need not comply where a gasketed door and self closer are provided in the existi ng fire separation .
DE 36	3.4.1.4.	The following types of exits may also be used for buildi ngs not over 6 storeys in building height : (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to grade, (b) areas of refuge where fire service rescue is possible and that comp ly with Measure L of Sentences (4) to (10), (18), and Clauses (20)(a), (b) and (d) in MMAH Supplementary Standard SB-4, “Measures for Fire Safety in High Buildings ”.
DE 37	3.4.1.8.	Existing stained, etched, bevelled, leaded or figured glass acceptable.
DE 38	3.4.2.5.(1)	Existing travel distance acceptable where floor area is sprinklered.
DE 39	3.4.3.2.(8)	Existing width of exits acceptable provided the occup ant load is not more than 15% above the exit capaci ty.
DE 40	3.4.3.3.	Existing acceptable.
DE 41	3.4.3.4.	Existing headroom clearance of not less than 1 980 mm is acceptable .
DE 42	3.4.4.1.	Fire separations of exits permitted in buildings : (a) 30 min , up to 3 storeys in building height , (b) 45 min , up to 6 storeys in building height , (c) 1 h, over 6 storeys in building height .
DE 43	3.4.4.4.(8)	Existing washrooms opening directly into exit stairwell shall be separated from exit stairwell by a 45 min closure .
DE 44	3.4.5.1.(2) and (9)	Existing illuminated legible exit signs are accept able.
DE 45	3.4.6.1.	Existing acceptable.
DE 46	3.4.6.2.	Existing acceptable, if visually apparent.
DE 47	3.4.6.3.(1)	Existing acceptable with rise no greater than 3.7 m.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 48	3.4.6.4.(1) to (3)	Existing acceptable.
DE 49	3.4.6.4. (4) and (5)	Existing acceptable.
DE 50	3.4.6.5.(3) to (13)	Existing acceptable.
DE 51	3.4.6.6.(1) to (5)	Existing acceptable.
DE 52	3.4.6.7.(1)	Existing acceptable.
DE 53	3.4.6.8.	Existing acceptable.
DE 54	3.4.6.9.	Existing acceptable.
DE 55	3.4.6.10 .(2) to (6)	Existing acceptable.
DE 56	3.4.6.11 .(1) to (3)	Existing acceptable.
DE 57	3.4.6.12 .	Existing acceptable in public heritage buildings or a change in occ upancy with no increase in occupant loa d .
DE 58	3.4.6.13 .	Existing acceptable.
DE 59	3.4.6.14 .	Existing acceptable.
DE 60	3.4.6.16 .	Existing functionally operable panic hardware acceptable.
DE 61	3.4.7.2.	Combustible fire escape s which are protected from fire in accordance with Sentence 3.2.3.13 .(2) are permitted or may be reconstructed or recreated ( as in the case of a heritage building ).
DE 62	3.5.1.	Existing acceptable except where building is classified under Subsection 3.2.6.
DE 63	3.6.2.1.(7)	Existing fire separation o f not less than 30 min is acceptable.
DE 64	3.6.2.2.	Existing acceptable wher e explosion-resistant construction or venting is provided.
DE 65	3.6.2.6.	Existing acceptable.
DE 66	3.6.2.7.(1)	2 h fire separation acc eptable.
DE 67	3.6.3.1.(1) to (5)	45 min fire separation acceptable up to 6 storeys .
DE 68	3.6.3.3.	(a) Where 2 h fire separation is required , 1 h is acceptable . (b) Where 1 h fire separation is required , 45 min is acceptable . (c) Existing need not comply with Sentence 3.6.3.3 .(5).
DE 69	3.6.4.2.	Ceiling fire separation need not have a fire-resistance rating where sprinklerin g, subject to C.A. DE26, of fire compartments on both sides of vertical fir e separation is provided and where such fire s eparation is not required to exceed 1 h.
DE 70	3.6.4.3.(1)	Existing to meet flame-spread rating of 25 or to be sprinklered .
DE 71	3.6.4.4. to 3.6.4.6 .	Existing access acceptable.
DE 72	3.7.4.	Where the occupant load is increased by more than 15% above the capacity of the existing facilities, facilities to be added to accommodate the increase.
DE 73	3.8.1.2.	Existing accessible entrance acceptable . ( See C .A. DE 78) Existing curb ramp conforming to Sentence 3.8.3.2 .(3) is acceptable . Existing principal entrance acceptable, provided at least one barrier-free entr ance is available.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 74	3.8.1.3.(1)	Existing unobstructed width of 920 mm minimum is acceptable.
DE 75	3.8.1.3.(4)	Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length located not more than 30 m apart is acceptable .
DE 76	3.8.3.2.(3)(b)	Existing curb ramp acceptable , provided width not less than 1 200 mm .
DE 77	3.8.3.3.(1)	Existing doorway acceptable, provided not less than 800 mm wid e.
DE 78	3.8.3.3.(11)(a)	Existing distance acceptable , provided not less than 1 200 mm plus the width of any door that swings into the space in the path of travel.
DE 79	3.8.3.4.(1)(a)	Existing ramp acceptable, provided not less than 870 mm between handr ails.
DE 80	3.8.3.8.(5)	Existing grab bar is acceptable.
DE 81	3.8.3.12 .	Existing universal washroom acceptable.
DE 82	3.8.3.13 .(2)(g)	Existing grab bar is acceptable.
DE 83	3.8.3.16 .	Existing drinking fountain conforming to Clauses 3.8.3.16 .(2)(a) and (b) acceptable .
DE 84	4.1.8.	The requirements under this Subsection do not apply.
DE 85	6.3.1.1.(2)	Required outdoor air rates may be provided by mechanical, natural or com bination of natural and mechanical means.
DE 86	6.3.2.3.; 6.3.2.6 ; 6.3.2.6 A.; 6.3.2.10 .	Existing acceptable.
DE 87	6.3.2.9.	Existing openings, grilles and di ffusers acceptable, subject to approval of chief building official .
DE 88	8.2.1.4.	Existing clearances acceptable where a sewage system is replaced with another sewage system within the same cl ass and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system .
DE 89	8.2.1.4.	Existing clearances are acceptable where a replacement sewage system requires lesser clearances than those required in Part 8 for the existing sewage syste m.
DE 90	9.3.2.1.	Sound used lumber may be acceptable for reuse without a grade stamp provided that : (a) visual examination shows no excessive weakening by holes, notches, nail spli ts or other damage, (b) where the grade or species is unknown, the minimum grade shall apply for span table use, and (c) lumber has not been subjected to ter mite infestation.
DE 91	9.5.11.2 .	Existing acceptable , provided not less than 600 mm .
DE 92	9.6.1.2.(2) and (3); 9.6.1.4.(1) and (2)	Existing doors and sidelights being reused or relocated need not conform if identified or protected.
DE 93	9.6.1.4.(3) and (4); 9.8.8.1.(6) and (8)	Existing acceptable.
DE 94	9.7.4.	Existing acceptable.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 95	9.8.1. to 9.8.4 .	Replacement or extension of existing stair systems shall be exempt from the provisions of these Subsections, except that they shall have: (a) a minimum width between wall faces of 700 mm , and (b) a minimum clear height over tread nosing or landing of 1 800 mm .
DE 96	9.8.3.2.	Existing acceptable.
DE 97	9.8.4.3. and 9.8.4.7 .	Existing tapered or spiral stairs acceptable.
DE 98	9.8.5.1.(2)	Existing ramps acceptable, where practical.
DE 99	9.8.7.	Existing handrails acceptable, unless considered unsafe by chief building official .
DE 100	9.8.8.	Existing guards accep table, unless considered unsafe by chief building official.
DE 101	9.9.1.1.	Existing acceptable.
DE 102	9.9.2.1.(1) to (2.1)	The following types of exits may also be used: (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to grade, (b) areas of refuge approved by the chief building official , where fire service rescue is possible, or (c) combustible or noncombust ible exterior stairways or fire escapes which are protected in accordance with Sentence 3.2.3.13 .(2). These may be reconstructed or recreated (as in the case of a heritage building ).
DE 103	9.9.2.1.(3)	Existing acceptable.
DE 104	9.9.3.2.	Existing width of exits acceptable.
DE 105	9.9.3.3.	Existing width of public corridors of not less than 9 65 mm is acceptable.
DE 106	9.9.3.4.	Existing clear height of not less than 1 950 mm is acceptable .
DE 107	9.9.4.2.	30 min fire separation accepta ble.
DE 108	9.9.5.4.; 9.9.5.5 .	Existing acceptable.
DE 109	9.9.5.8.	Existing acceptable provided minimum 45 min fire separation and where explosion- resistant construction or venting is provi ded.
DE 110	9.9.5.9.	Existing acceptable, provided that the enclosure has a 45 min fire-resistance rating .
DE 111	9.9.6.1.	Existing acceptable.
DE 112	9.9.6.2.	Existing clear opening height of not less than 1 950 mm is acceptable .
DE 113	9.9.6.3.	Existing door widths are acceptable, provided exit widths comply with C.A. DE99.
DE 114	9.9.6.5.	Existing door swings are acceptable. Existing acceptable in public heritage buildings , where approved by chief building official .
DE 115	9.9.6.6.(1)	Where exit doors open onto a landing, they shall not extend beyond the face of the first riser.
DE 116	9.9.6.8.	Existing functionall y operable passage or panic hardware acceptable.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 117	9.9.7.4.	Maximum area of existing room or suite t o be unlimited.
DE 118	9.9.8.2.(1)	Existing travel distance acceptable where floor area is sprinklered and provided fire separations comply with Part 9.
DE 119	9.9.11.3 .	Existing illuminated legible signs are acceptable for exit signs, if approved by chief building official .
DE 120	9.10.1.3 .(8) to (10)	Existing installations acceptable subject to C .A. DE 25 and DE 26.
DE 121	9.10.3.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
DE 122	9.10.5.1 .	(a) Existing openings in existing wall or ceiling membranes to remain. (b) Existing openings may be moved to another location i n the same wall or ceiling, provided the aggregate area of openings does not increase and are not cumulative, and the existing opening is blocked up to provide the same rating as the existing wall or ceiling assembly.
DE 123	9.10.6.2 .	Existing heavy timber construction acceptable where construction is within 90% of the member sizes listed in Part 3.
DE 124	9.10.7.	Existing acceptable for heritage b uildings , subject to approval of chief building official .
DE 125	9.10.8.1 .	Existing 30 min rating acceptable .
DE 126	9.10.8.2 .	Existing sprinkler systems complying with C .A. DE 26 and Sentence 3.2.2.17 .(1) are acceptable.
DE 127	9.10.8.3 .	Existing acceptable, subje ct to approval of the chief building official .
DE 128	9.10.8.4 .	Assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
DE 129	9.10.8.8 .	30 min rating acceptable .
DE 130	9.10.9.7. to 9.10.9.9 .; 9.10.9.11 .	Existing acceptable in existing fire separat ions .
DE 131	9.10.9.12 .(1)	Ceiling fire separation need not be fire-resistance rated where sprinklering of fire compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h.
DE 132	9.10.9.13 .(2)	In lieu of the 2 h fire separation , sprinkle rs may be used in the mercantile occupancy with a 1 h fire separation .
DE 133	9.10.9.15 .	30 min fire separation acceptab le.
DE 134	9.10.9.17 .(1)	30 min fire separation accepta ble.
DE 135	9.10.9.17 .(3)	Need not comply for mercantile occupancy .

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 136	9.10.10.3 .(1)	45 min fire separation acceptable.
DE 137	9.10.13.1 .	Existing functional closures are acceptable subject to C.A. DE8.
DE 138	9.10.13.2 .	Existing acceptable.
DE 139	9.10.13.3 .	Existing acceptable, pro vided that wood door frames are secured with hinge screws going through frame into the stud.
DE 140	9.10.13.5 .	Existing acceptable. Existing transoms or sidelights located in required fire separations may be retained if wired glass , at least 6 mm thick , is securely fixed to a wood frame of at least 50 mm thickness with steel stops . Operable transoms shall be fixed closed.
DE 141	9.10.13.6 .	Existing steel door frames acceptable.
DE 142	9.10.13.7 .	Existing glass block acceptab le.
DE 143	9.10.13.8 .	Existing sizes acceptable.
DE 144	9.10.13.9 .	Existing operable latches acceptable.
DE 145	9.10.13.10 .(1)	Existing functional ly operable self-closing devices acceptable.
DE 146	9.10.13.10 .(2)	Existing functionally operab le self-closing devices acceptable in “E” occupancy .
DE 147	9.10.13.11 .	Existing operable self-relea sing electromagnetic and fusible link hold-open devices acceptable.
DE 148	9.10.13.12 .	Existing swings acceptable.
DE 149	9.10.14.4 .	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies no closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, to be restricted to the same fire compa rtment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable , or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is s prinklered .
DE 150	9.10.16.2 .(1)	Where balloon framing is exposed during renovation, fire blocks shall be provided.
DE 151	9.10.18.	(a) Subject to approval by the chief building official , existing fire alarm system may remain where the fire safety plan (as described in th e Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of 3.2.4. (i.e. “ stage ’ system , electrical supervision , detection as required , Fire Department connection, and eme rgency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.

Table .-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
DE 152	9.10.20.	Existing access acceptable.
DE 153	9.18.2.	Existing access acceptable.
DE 154	9.18.3.	Existing vents and ventilation acceptable.
DE 155	9.19.	Existing acceptable.
DE 156	9.20.2.2 .	Used masonry may be reused for patching and filling openings to match adjacent work. Used interior brick may not be used for e xterior applications.
DE 157	9.20.3.	Archaic mortars may be used to match existing jointing.
DE 158	9.20.4.1 .	Sound jointing techniques m ay be employed to match existing archaic joints.
DE 159	9.20.12.1 .	Corbelling may be constructed to match existing or o riginal details, provided that it is structurally adequate for the proposed use.
DE 160	9.21.	Existing acceptable, provided the products of combustion are safely vented and provided no fire hazard is created.
DE 161	9.22.1. to 9.22.7 .	Sound period materials, designs and techniques may be employed in recreated fireplaces, provided no fire hazard is created. Existing need not comply with Article 9.22.1.4 .
DE 162	9.23.	Existing acceptable.
DE 163	9.24.	Existing acceptable.
DE 164	9.26.	Existing acceptable, except when removing and replacing shingles, comply with eave protection requirements in Subsection 9.26.5.
DE 165	9.27.	Existing acceptable.
DE 166	9.28.	All replacement or recreation of existing stucco may be compatible with the existing materials and application.
DE 167	9.29.4.	Existing acceptable. All replacement or recreation of existing plaster may be compatible with the existing materials and application.
DE 168	9.33.5.3 .	Sound, used or antique appliances are acceptable, provided that: (a) visual examination sho ws no excessive weakening by corrosion or other damage, (b) no structural parts are missing , (c) no cracks are present in the components intended to support the appl iance or enclose the fire, and (d) loading and ash removal door latches and hinges hold the d oor closed.
DE 169	9.38.	Sound used materials shall be acceptable for reuse, subject to the following limitations: (a) visual examination shows no excessive weakening by holes, notches, nail spli ts or other damage, and (b) logs have not been subjected to termite infestation.

Table .-F Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F1	3.1.4.7.	Existing heavy timber construct ion acceptable where construction is within 90% of member sizes listed in Part 3.
F2	3.1.5.2. to 3.1.5.4 .; 3.1.5.8 .	Existing acceptable.
F3	3.1.5.9. to 3.1.5.12 .	Except for exposed foamed plastics , existing acceptable for “F2” and “F3” occupancies . To match existing, materials may be added from on or off site.
F4	3.1.5.18. to 3.1.5.20 .; 3.1.5.25 .	Existing acceptable.
F5	3.1.7.1.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222, “ Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
F6	3.1.7.5.(3)	Existing assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
F7	3.1.8.1.(2); 3.1.8.6 .	Existing functional closures are acceptable and may be relocated within the same existing fire separa tion .
F8	3.1.8.5.(2)	(a) Existing functional and sound doors in existing buildings that are either hollow metal or kalamein and containing wired glass at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2) are permitted in lieu of doors not required to exceed 45 min , (b) all existing functional and sound hollow metal or kalamein doors which c arry existing 1.5 h labels are acceptable in lieu of current 1.5 h labels and may contain wired glass panels not exceeding 0.0645 m², at least 6 mm thick and conforming to Sentence 3.1.8.16 .(2), and (c) every fire door, window assembly or glass block used as a closure in a required fire separation shall be installed in conformance with good engineering practice.
F9	3.1.8.7., 3.1.8.8 . and 3.1.8.10 .	Fire dampers or fire stop f laps are not required to be installed in existing ducts at penetrations of existing fire separations .
F10	3.1.8.12 .(1)	For existing unlabelled doors in existing buildings , at least 45 mm sol id core wood or metal clad are acceptab le.
F11	3.1.8.13 .(1)	Existing functionally operable devices acceptable for “F2” and “F3” occupancies .
F12	3.1.8.15 .	Existing functionally operable latching devices, excluding draw bolts, are acceptable.
F13	3.1.8.16 .	Existing transoms or sidelights located in required fire separations may be retained if wired glass , at least 6 mm thick , is securely fixed to a wood frame of at least 50 mm thickness with steel stops . Operable transoms shall be fixed closed.
F14	3.1.8.17. to 3.1.8.19 .	Existing acceptable.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F15	3.1.11.	Where the concealed space is being materially altered, smoke or heat detection in that space in lieu of fire blocks and tied into fire alar m system is acceptable.
F16	3.2.3.	Existing need not comply with Article 3.2.3.18 . for “F2” occupancy . Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies not closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, shall be restricted to the same fire compar tment and shall conform to the requirements of Article 3.2.3.16 . or 9.10.12.3 . where applicable, or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is sprinklered.
F17	3.2.3.6.(3)	Existing roof soffit projections accepta ble.
F18	3.2.3.17 .	Need not comply for “F2” occupancy .
F19	3.2.4.	(a) Existing fire alarm system may remain except that Article 3.2.4.5 . does not apply where the fire safety plan (as described in the Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Department connection, and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.
F20	3.2.4.8.(2)(e)	Does not apply to existing ins tallations in buildings .
F21	3.2.4.9.(5)(c)	Does not apply to existing ins tallations in buildings .
F22	3.2.5.1; 3.2.5.2 .	Existing acceptable.
F23	3.2.5.3.	Existing access acceptable.
F24	3.2.5.4. to 3.2.5.6 .	Existing acceptable provided the building is sprinklered throughout.
F25	3.2.5.7.	Does not apply, except where a change in major occupancy occurs from a lesser hazard index .
F26	3.2.5.8. to 3.2.5.11 .	Does not apply to buildings 6 storeys and less of “F2” and “F3” occupancies . Does not apply to sprinklered buildings .
F27	3.2.5.12 .	Existing sprinkler systems in existing build ings that do not conform to NFPA 13 may be altered, added to, or exten ded from the existing system without complying with NFPA 13, provided the system is operational and adequate with respect to coverage, water supply and controls, and provided the system is evaluated by a qualified designer.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F28	3.3.1.4.(1)	30 min is acceptable to separate public corridors or exits in buildings not exceeding 6 storeys in building height , except that 45 min i s required for exits in buildings exceeding 3 storeys in building height . Except for exits , no rating required where floor areas are sprinklered .
F29	3.3.1.5.(1)(c); Tables 3.3.1.5 .-A and 3.3.1.5 .-B	For “F2” and “F3” occupancies in Column 2, maximum area of room or suite to be unlimited.
F30	3.3.1.9.	Existing width of public corridors of not less than 914 mm is acce ptable.
F31	3.3.1.9.(11) and (12)	Need not comply where connected balcony or area of refuge is provided in compliance with C .A. F38.
F32	3.3.1.11 .; 3.3.1.12 .	Existing door swings may remain in heritage buildings , existing or being restored, with no change in major occupancy and with occupant load no greater than 100.
F33	3.3.1.13 .	Existing doors acceptable, provided not less than 600 mm wid e.
F34	3.3.1.16 .	Existing curved or spiral stairs acceptable.
F35	3.3.1.20 .	Existing stained, etched, bevelled, leaded or figured glass acceptable.
F36	3.3.5.4.(2), (3) and (5)	Existing acceptable.
F37	3.3.5.6.; 3.3.5.7 .	Need not comply where a gasketed door and self closer are provided in the existi ng fire separation .
F38	3.4.1.4.	For “F2” and “F3” occupancies , the following types of exits may also be used for buildings not over 6 storeys in buildin g height : (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to grade, (b) areas of refuge where fire service rescue is possible and that comp ly with Measure L in Sentences (4) to (10), (18) and Clauses (20)(a), (b) and (d) in MMAH Supplementary Standard SB-4, “Measures for Fire Safety in High Buildings ”.
F39	3.4.1.8.	Existing stained, etched, bevelled, leaded or figured glass acceptable.
F40	3.4.2.5.(1)	For “F2” and “F3” occupancies , existing travel distance acceptable where the floor area is sprinklered .
F41	3.4.3.2.(8)	For “F2” and “F3” occupancies , existing width of exits acceptable provided the occupant load is not more than 15% above the exit capacity .
F42	3.4.3.3.	Existing acceptable.
F43	3.4.3.4.	Existing headroom clearance of not less than 1 980 mm is acceptable .
F44	3.4.4.1.	Fire separations of exits permitted in buildings : (a) 30 min , up to 3 storeys in building height , (b) 45 min , up to 6 storeys in building height , (c) 1 h, over 6 storeys in building height .
F45	3.4.4.4.(8)	Existing washrooms opening directly into exit stairwell shall be separated from exit stairwell by 45 min closure .
F46	3.4.5.1.(2) and (9)	Existing illuminated legible exit signs are accept able.
F47	3.4.6.1.	Existing acceptable.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F48	3.4.6.2.	Existing acceptable, if visually apparent.
F49	3.4.6.3.(1)	Existing acceptable with rise no greater than 3.7 m.
F50	3.4.6.4.(1) to (3)	Existing acceptable.
F51	3.4.6.4. (4) and (5)	Existing acceptable.
F52	3.4.6.5. (3) to (13)	Existing acceptable.
F53	3.4.6.6.(1) to (5)	Existing acceptable.
F54	3.4.6.7.(1)	Existing acceptable.
F55	3.4.6.8.	Existing acceptable.
F56	3.4.6.9.	Existing acceptable.
F57	3.4.6.10 .(2) to (6)	Existing acceptable.
F58	3.4.6.11 .(1) to (3)	Existing acceptable.
F59	3.4.6.12 .	For “F2” and “F3” occupancies , existing acceptable in public heritage buildings or a change in occupancy with no increase in occupant load .
F60	3.4.6.13 .; 3.4.6.14 .	Existing acceptable.
F61	3.4.6.16 .	Existing functionally operable panic hardware acceptable.
F62	3.4.7.2.	Combustible fire escape s which are protected from fire in accordance with Sentence 3.2.3.13 .(2) are permitted or may be reconstructed or recreated ( as in the case of a heritage building ).
F63	3.5.1.	Existing acceptable , except where building classified under Subsection 3.2.6. and except where existing e levators are “open” type.
F64	3.6.2.1.(7)	45 min fire separation acceptable.
F65	3.6.2.2.	Existing acceptable where explosion-resistant construction or venting is provided.
F66	3.6.2.6.	Existing acceptable.
F67	3.6.2.7.(1)	2 h fire separation acc eptable.
F68	3.6.3.1.(1) to (5)	45 min fire separation acceptable up to 6 storeys .
F69	3.6.3.3.	(a) Where 2 h fire separation is required , 1 h is acceptable . (b) Where 1 h fire separation is required , 45 min is acceptable . (c) Existing need not comply with Sentences 3.6.3.3 .(4) and (5 ).
F70	3.6.4.2.	Ceiling fire separation need not be fire-resistance rated where sprinklering, subj ect to C.A . F26, of fire compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h.
F71	3.6.4.3.(1)	Existing to meet flame-spread rating of 25 or to be sprinklered .
F72	3.6.4.4. to 3.6.4.6 .	Existing access acceptable.
F73	3.6.5.5.	Existing acceptable for “F2” and “F3” occupancies .

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F74	3.8.1.2.	Existing accessible entrance acceptable . ( See C .A. F780) Existing curb ramp conforming to Sentence 3.8.3.2 .(3) is acceptable . Existing principal entrance acceptable, provided at least one barrier-free entr ance is available.
F75	3.8.1.3.(1)	Existing unobstructed width of 920 mm minimum is acceptable.
F76	3.8.1.3.(4)	Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length located not more than 30 m apart is acceptable .
F77	3.8.3.2.(3)(b)	Existing curb ramp acceptable , provided width not less than 1 200 mm .
F78	3.8.3.3.(1)	Existing doorway acceptable, provided not less than 800 mm wid e.
F79	3.8.3.3.(11)(a)	Existing distance acceptable , provided not less than 1 200 mm plus the width of any door that swings into the space in the path of travel.
F80	3.8.3.4.(1)(a)	Existing ramp acceptable, provided not less than 870 mm between handr ails.
F81	3.8.3.8.(5)	Existing grab bar is acceptable.
F82	3.8.3.12 .	Existing universal washroom acceptable.
F83	3.8.3.13 .(2) (g)	Existing grab bar is acceptable.
F84	3.8.3.16 .	Existing drinking fountain conforming to Clauses 3.8.3.16 .(2)(a) and (b) acceptable .
F85	4.1.8.	The requirements under this Subsection do not apply.
F86	6.3.1.3.(1), (3) and (4)	Storage garages with a total capacity of fewer than 20 motor vehicles need not ha ve mechanical ventilating sys tems if the downward slope of the floor to the outside door is 1 in 120 and the garage floor is above outside ground level .
F87	6.3.2.3.; 6.3.2.6 .; 6.3.2.6 A.; 6.3.2.10	Existing acceptable for “F2” and “F3” occupancies .
F88	6.3.2.9.	Existing openings, grilles and diffusers acceptable.
F89	8.2.1.4.	Existing clearances acceptable where a sewage system is replaced with another sewage system within the same cl ass and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system .
F90	8.2.1.4.	Existing clearances are acce ptable where a replacement sewage system requires lesser clearances than those required in Part 8 for the existing sewage system .
F91	9.3.2.1.	Sound used lumber is acceptable for reuse without a grade stamp provided that: (a) visual examination shows no excessive weakening by holes, notches, nail spli ts or other damage, (b) where the grade or species is unknown, the minimum grade shall apply for span table use, and (c) lumber has not been subjected to ter mite infestation.
F92	9.5.11.2 .	Existing acceptable , provided not less than 600 mm .
F93	9.6.1.2.(2) and (3); 9.6.1.4.(1) and (2)	Existing doors and sidelights being reused or relocated need not conform if identified or protected.
F94	9.6.1.4.(3) and (4); 9.8.8.1.(6) and (8)	Existing barriers acceptable.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F95	9.7.4.	Existing acceptable.
F96	9.8.1. to 9.8.4 .	Replacement or extension of existing stair systems shall be exempt from the provisions of these Articles, except that they shall have: (a) a minimum width between wall faces of 700 mm , and (b) a minimum clear height over tread nosing or landing of 1 800 mm .
F97	9.8.4.3. and 9.8.4.7 .	Existing tapered or spiral stairs acceptable.
F98	9.8.5.1.(2)	Existing ramps acceptable, where practical.
F99	9.8.7.	Existing handrails acceptable, unless considered unsafe by chief building official .
F100	9.8.8.	Existing guards accep table, unless considered unsafe by chief building official .
F101	9.8.9.6.(4)	Existing acceptable.
F102	9.9.1.1.	Existing acceptable.
F103	9.9.2.1.(1) to (3.1)	The following types of exits may also be used: (a) connected balconies, which connect across firewalls , or connect to another exit , or with access to grade, (b) areas of refuge approved by the chief building official , where fire service rescue is possible , or (c) combustible or noncombust ible exterior stairways or fire escapes which are protected in accordance with Sentence 3.2.3.13 .(2). These may be reconstructed or recreated (as in the case of a heritage building ).
F104	9.9.2.1.(3)	Existing acceptable.
F105	9.9.3.2.	Existing width of exits acceptable.
F106	9.9.3.3.	Existing width of public corridors of not less than 965 mm is acce ptable.
F107	9.9.3.4.	Existing clear height of not less than 1 950 mm is acceptable .
F108	9.9.4.2.	30 min fire separation accepta ble.
F109	9.9.5.4.	Existing acceptable.
F110	9.9.5.8.	Existing acceptable provided minimum 45 min fire separation and where explosion- resistant construction or ventin g is provided.
F111	9.9.5.9.	Existing acceptable, provided that the enclosure has a 45 min fire-resistance rating .
F112	9.9.6.3.	Existing door widths are acceptable , provided exit widths comply with C .A. F107.
F113	9.9.6.5.	Existing door swings acceptable. Existing acceptable in public heritage buildings , where approved by chief building official .
F114	9.9.6.6.(1)	Where exit doors open onto a landing, such doors shall not extend beyond the face of the first riser .
F115	9.9.6.8.	Existing functionall y operable passage or panic hardware acceptable.
F116	9.9.7.4.	Maximum area of existing room or suite does n ot apply.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F117	9.9.8.2.(1)	Existing travel distance acceptable where floor area is sprinklered and provided fire separations comply with Part 9.
F118	9.9.11.3 .	Existing illuminated legible signs are acceptable for exit signs, if approved by chief building official .
F119	9.10.1.3 .(8) to (10)	Existing acceptable subject to C .A. F26 and F 27.
F120	9.10.3.	Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratin gs of Archaic Materials and Assemblies”. 2. DBR Technical Paper No . 194, “ Fire Endurance of Protected Steel Columns and Beams ”. 3. DBR Technical Paper No . 207, “ Fire Endurance of Unit Masonry Walls ”. 4. DBR Technical Paper No . 222. Fire Endurance of Light - Framed and Miscellaneous Assemblies”.
F121	9.10.5.1 .	Existing openings in existing wall or ceiling membranes to remain. Existing openings may be moved to another location in the same wal l or ceiling, provided the aggregate area of openings does not increase and are not cumulative, and the existing opening is blocked up to provide the same rating as th e existing wall or ceiling assembly.
F122	9.10.6.2 .	Existing heavy timber construction acceptable where construction is within 90% of the member sizes listed in Part 3.
F123	9.10.7.	Existing acceptable for heritage b uildings , subject to approval of chief building official .
F124	9.10.8.1 .	Existing 30 min rating acceptable .
F125	9.10.8.2 .	Existing sprinkler systems complying with C .A . F26 and Sentence 3.2.2.17 .(1) are acceptable.
F126	9.10.8.3 .	Existing acceptable, subject to a pproval of chief building official .
F127	9.10.8.4 .	Assemblies required to be of noncombustible construction may be supported by combustible construction having at least the same fire-resistance rating as that supported.
F128	9.10.8.8 .	30 min rating acceptable .
F129	9.10.9.7. to 9.10.9.9 .; 9.10.9.11 .	Existing acceptable in existing fire separat ions .
F130	9.10.9.12 .(1)	Ceiling fire separation need not be fire-resistance rated where sprinklering of fi re compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h.
F131	9.10.9.13 .(2)	In lieu of the 2 h fire separation , sprinklers may be us ed in the medium-hazard industrial occupancy with a 1 h fire separat ion .
F132	9.10.9.15 .; 9.10.9.17 .(1)	30 min fire separation accepta ble.
F133	9.10.10.3 .(1)	45 min fire separation acceptable.
F134	9.10.13.1 .	Existing functional closures are acceptable subject to C .A . F8.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

C.A. Number	Division B Requirements	Compliance Alternative
F135	9.10.13.2 .	Existing acceptable.
F136	9.10.13.3 .	Existing acceptable, pro vided that wood door frames are secured with hinge screws going through frame into the stud.
F137	9.10.13.5 .	Existing wired glass acceptable. Existing transoms or sidelights located in required fire separa tions may be retained if wired glass , at least 6 mm thick , is securely fixed to a wood frame of at least 50 mm thickness with steel stops . Operable transoms shall be fixed closed.
F138	9.10.13.6 .	Existing steel door frames acceptable.
F139	9.10.13.7 .	Existing glass block acceptab le.
F140	9.10.13.8 .	Existing sizes acceptable.
F141	9.10.13.9 .	Existing operable latches acceptable.
F142	9.10.13.10 .(1)	Existing functional ly operable self-closing devices acceptable.
F143	9.10.13.11 .	Existing operable self-relea sing electromagnetic and fusible link hold-open devices acceptable.
F144	9.10.13.12 .	Existing swings acceptable.
F145	9.10.14.4 .	Existing windows. (a) Existing windows in walls may be relocated to another p art of the wall, provided the existing opening is blocked up to provide the same fire rating for t he wall, and the projection of the new opening, at a right ang le to the property line onto another building , lies no closer than 300 mm from a window in such other building , where the “ opposite ” window is less than 2 400 mm from the opposite new opening, and (b) except relocation of units, to be restricted to the same fire compa rtment and shall conform to the requirements of Article 3.2.3.14 . or 9.10.12.3 . where applicable , or (c) where a building does not satisfy the requirements of Subsection 3.2.3. for the amount of openings facing a yard or space that does not have sufficient limiting distance , such existing openings are allowed to be relocated provided: (i) such openings are not increased in size and they are protecte d with wired glass in steel frames conforming to Sentence 3.1.8.16 .(2), or (ii) the building is sprinklered .
F146	9.10.16.2 .(1)	Where balloon framing is exposed during renovation, fire blocks shall be provided.
F147	9.10.18.	(a) Subject to approval by the chief building official , existing fire alarm system may remain where the fire safety plan (as described in th e Fire Code made under the Fire Protection and Prevention Act , 1997 ) for the building addresses the intent of Subsection 3.2.4. (i.e. “ stage ” system , electrical supervision , detection as required, Fire Department connection, and emergency power supply), and (b) extension of an existing system must ensure continuity and compatibility, and integrity of the sy stem.

Table .-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article .

[TABLE:76] Resource Conservation and Environmental Integrity