OBC DIVISION B · PART 11 — RENOVATIONUpdated for the 2024 Ontario Building Code

Section 11.5 — Compliance Alternatives

Full text of Section 11.5 (Compliance Alternatives) — Division B, Part 11 (Renovation) of the 2024 Ontario Building Code, with every article reproduced below.

On this page:
11.5.1.1.

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

11.5.1.1.Compliance Alternatives permalink →

(1) A compliance alternative shown in Table 11.5.1.1.-A, 11.5.1.1.-B, 11.5.1.1.-C, 11.5.1.1.-D/E or 11.5.1.1.-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 construction difficulties, or (b) it is detrimental to the preservation of a heritage building. (2) A compliance alternative shown in Table 11.5.1.1.-A, 11.5.1.1.-B, 11.5.1.1.-C, 11.5.1.1.-D/E or 11.5.1.1.-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 11.2.1.1.-A Construction Index Forming Part of Sentence 11.2.1.1.(1) Fire-Resistance Rating Type of Construction C.I.(2) Floors over Basement Other Floors Roof 3h 3h 1.5 h Noncombustible 8(1) 2h 2h 1h Noncombustible 7 1h 1h 45 min Noncombustible 6 45 min 45 min 0h Noncombustible 5 45 min 45 min 45 min Heavy Timber 5 45 min 45 min 45 min Combustible 5 45 min 0h 0h Noncombustible 4 45 min 45 min 0h Combustible 4 30 min 0h 0h Noncombustible 3 30 min 30 min 0h Combustible 3 0h 30 min 0h Combustible 2 0h 0h 0h Combustible 1(1) Notes to Table 11.2.1.1-.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 11.2.1.1.-A for existing building. Table 11.2.1.1.-B(1)(4) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group A Occupancy H.I.(5) Division 1 Small Medium Large Dinner Theatres 4 5 6 Live Theatres 4 5 6 Motion Picture Theatres 4 5 6 Opera Houses 4 5 6 Television Studios (With Audience) 4 5 6 Notes to Table 11.2.1.1.-B: (1) Building Size (Maximum)(2)(3) – 300 occupant load maximum / 1 storey Small – 600 m2 / 600 occupant load maximum / 1 storey with less than 40% 2 storey (6) Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 3.2.2.21.(1)(c) and (d). Table 11.2.1.1.-C(1)(4)(6) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group A Occupancy H.I.(5) Division 2 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 Establishments 3 4 6 Licensed Clubs, Lodges 3 4 6 Museums 3 4 6 Passenger Stations / Depots 3 4 6 Public Heritage Buildings 3 — — Recreational Piers 3 4 6 Restaurants 3 4 6 Schools, Colleges 3 4 6 Undertaking Premises 3 4 6 Table 11.2.1.1.-C(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Notes to Table 11.2.1.1.-C: (1) Building Size (Maximum)(2)(3) – 400 m2 / 1 storey Small – 250 m2 / 3 storey (Public Heritage Building) Small – 800 m2 / 2 storey Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 11.2.1.1.-D(1)(4) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group A Occupancy H.I.(5) Division 3 Small Medium Large Arenas (No Occupancy On Activity Surface) 3 4 6 Armouries (No Occupancy On Activity Surface) 3 4 6 Enclosed Stadia or Grandstand 3 4 6 Ice Rinks (No Occupancy On Activity Surface) 3 4 6 Indoor Swimming Pools 3 4 6 Notes to Table 11.2.1.1.-D: (1) Building Size (Maximum)(2)(3) – 1 000 m2 / 1 storey Small – 2 000 m2 / 2 storey Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-A. (5) Take lowest rating for H.I. from Table for major occupancy change. Table 11.2.1.1.-E(1)(3) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group A Occupancy H.I.(4) Division 4 Small Medium Large Amusement Park Structures 2 3 5 Bleachers 1 3 5 Grandstands (Open) 1 3 5 Reviewing Stands 1 3 5 Stadia (Open) 1 3 5 Notes to Table 11.2.1.1.-E: (1) Building Size (Maximum)(2) – 2 500 occupant load max. / min. limiting distance of 6 m (combustible) Small – 15 000 occupant load maximum (with roof at least ½ rating if combustible) Medium – Unlimited occupant load Large (2) Building size is based on the existing building facing one street. (3) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-A. (4) Take lowest rating for H.I. from Table for major occupancy change. Table 11.2.1.1.-F(1) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group B Occupancy H.I.(3)(5) Division 1 Small Medium Large Detention Facilities (Minimum Security)(4) 4 5 6 Detention Facilities (All Other Types of Security) 6 6 7 Police Station with Detention 3 — — Notes to Table 11.2.1.1.-F: (1) Building Size (Maximum)(2) – Any area / 1 storey Small – 600 m2 / 1 storey (Police Station with Detention) Small – Any area (noncombustible) / 2 storey Medium – Any area (noncombustible); 500 m2 (combustible) / 2 storey Large – Over 18 m high, measured between grade and the floor level of the top storey (noncombustible) H.I. = 7 – Over 500 m2 (combustible) / over 2 storey 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 11.2.1.1.-G(1)(4) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group B Occupancy H.I.(5)(7) Division 2 Small Medium Large Hospital, Long-Term Care Home (Immobile)(6) 4 5 7 Hospital, Long-Term Care Home (Non-Ambulatory)(6) 4 5 6 Hospital, Long-Term Care Home (Ambulatory)(6) 3 4 6 Psychiatric Facility (Maximum Confinement) 4 5 7 Psychiatric Facility (Minimum Confinement) 3 4 6 Police Station With Detention (as Permitted in Article 3.1.2.4.) 3 — — Notes to Table 11.2.1.1.-G: (1) Building Size (Maximum)(2)(3) – 250 m2 / 1 storey Small – 600 m2 / 1 storey (Police Station with Detention) Small – 500 m2 / 2 storey; 1 000 m2 / 1 storey Medium – Any area (noncombustible); 500 m2 (combustible) / 2 storey Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 11.2.1.1.-H(1) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group B Occupancy H.I.(4)(5) Division 3 Small Medium Large Residential care facilities (Ambulatory)(6) 3 4 6 (Non-Ambulatory)(6) 4 5 6 Children Custodial Homes 3 4 6 Convalescent Homes (Ambulatory)(6) 3 4 6 (Non-Ambulatory)(6) 4 5 6 Group Homes For Adult Residents with Developmental Disabilities (Minimum Confinement) 3 4 6 (Maximum Confinement) 4 5 6 Notes to Table 11.2.1.1.-H: (1) Building Size (Maximum)(2)(3) – 600 m2 / 1 storey Small – 500 m2 / 2 storey; 1 000 m2 / 1 storey Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (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 11.2.1.1.-I(1) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Occupancy H.I.(4) Group C Small Medium Large Apartments 3 4 6 Boarding Houses/Group Homes 3 — — Clubs, Residential 3 4 6 Colleges, Residential 3 4 6 Convents 3 4 6 Dormitories/Hostels 3 4 6 Hotels 3 5 6 Houses 2 2 — Lodging Houses 3 — — Live/work units 4 5 7 Monasteries 3 4 6 Public Heritage Buildings 3 — — Rectories 2 — — Retirement Homes 3 4 6 Rooming Houses 3 — — Schools, Boarding 3 4 6 Notes to Table 11.2.1.1.-I: (1) Building Size (Maximum)(2)(3) – 600 m2 / 3 storey Small – 250 m2 / 3 storey (Public Heritage Building) Small – 2 000 m2 / not exceeding 6 storeys Medium – Any area / not exceeding 36 m high, measured between grade and the floor level of the top storey Large – Over 36 m high, measured between grade and the floor level of the top storey H.I. = 7 – Hotels over 18 m high, measured between grade and the floor level of the top storey 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 11.2.1.1.-J(1)(4)6) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Occupancy H.I.(5) Group D 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 (Telecommunications) 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 (Examination) 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 11.2.1.1.-J(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Occupancy H.I.(5) Group D Small Medium Large Pharmacy Offices 3 4 5 Photographic Studios 3 4 5 Physiotherapy Offices 3 4 5 Police Stations (No Detention) 3 4 5 Printing and Duplicating 4 5 6 Public Heritage Buildings 3 — — Public Saunas 3 4 5 Radio Stations (No Audience) 3 4 5 Small Tool Rental Premises 3 4 5 Suntan Parlours 3 4 5 Veterinary Offices 3 4 5 Notes to Table 11.2.1.1.-J: (1) Building Size (Maximum)(2)(3) – 800 m2 / 2 storey Small – 250 m2 / 3 storey (Public Heritage Building) Small – 1 600 m2 / 3 storey Medium – Any area / not exceeding 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey, but H.I. = 6 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 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 11.2.1.1.-K(1)(4)(6) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Occupancy H.I.(5) Group E Small Medium Large Automotive/Hardware Department 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 Stores 4 5 7 Kitchen/Bathroom Cupboards Stores 3 4 6 Plumbing Stores (Fixtures/Accessories) 3 3 5 “Pop” Shops 3 4 6 Public Heritage Buildings 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 11.2.1.1.-K(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Occupancy H.I.(5) Group E Small Medium Large Stores (Clothing) 3 4 6 Stores (Drugs) 4 4 6 Stores (Electronic) 3 4 6 Stores (Floor Coverings) 4 5 7 Stores (Food) 3 3 6 Stores (Furniture/Appliances) 3 4 6 Stores (Hardware) 4 5 7 Stores (Health) 4 4 6 Stores (Hobby) 3 4 6 Stores (Jewellery) 3 3 5 Stores (Paint/Wallpaper) 4 5 7 Stores (Pet) 3 4 6 Stores (Records/Tapes) 3 4 6 Stores (Spirits) 4 5 7 Stores (Toys) 4 5 7 Stores (Variety) 4 4 6 Stores (Video Sales/Rental) 3 4 6 Supermarkets 3 4 6 Notes to Table 11.2.1.1.-K: (1) Building Size (Maximum)(2)(3) – 600 m2 / 2 storey Small – 250 m2 / 3 storey (Public Heritage Building) Small – 800 m2 / 3 storey Medium – Any area / up to 18 m high, measured between grade and the floor level of the top storey Large – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 buildings 1 500 m2 and over are to be sprinklered. Table 11.2.1.1.-L(1)(4)(5) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group F Occupancy H.I.(3) Division 1 Small Medium Large Ammunition Manufacturing and Storage 3 6 8 Black Powder Manufacturing and Storage 3 6 8 Bulk Plants for Flammable Liquids 3 6 8 Bulk Storage Warehouse (Hazardous Substances) 3 6 8 Cereal and Feed Mills 3 6 8 Chemical Manufacturing/Processing Plant 3 6 8 Distilleries 3 6 8 Dry Cleaning Plants (Flammable) 3 6 8 Explosives Manufacturing and Storage 3 6 8 Fertilizer Manufacturing Plants 3 6 8 Fireworks Manufacturing and Storage 3 6 8 Flour Mills 3 6 8 Gas (Flammable) Compressor Stations 3 6 8 Gas (Flammable) Manufacturing and Storage 3 6 8 Grain Elevators 3 6 8 Lacquer Factories 3 6 8 Loading Area for all Group F, Division 1 3 6 8 Mattress Factories (High Fire Load) 3 6 8 Paint/Varnish/Pyroxylin Factories 3 6 8 Petrochemical Plants 3 6 8 Refineries 3 6 8 Rubber Processing Plants 3 6 8 Spray Painting Operations 3 6 8 Waste Paper Processing Plants (Dry) 3 6 8 Notes to Table 11.2.1.1.-L: (1) Building Size (Maximum)(2) – 400 m2 / 2 storey Small – 600 m2 / 4 storey Medium – 1 500 m2 / 4 storey Large (2) Sizes are based on building area and building height. (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 buildings 1 500 m2 and over are to be sprinklered. (5) All floor assemblies shall be fire separations. Table 11.2.1.1.-M(1)(4)(6) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group F Occupancy H.I.(5) Division 2 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 3 5 7 Flammable Refrigerant Combustible Packaging Combustible Insulation Flammable Refrigerant 3 5 6 Noncombustible Packaging Combustible Insulation Non-Flammable Refrigerant 3 4 5 Noncombustible Packaging Noncombustible Insulation Non-Flammable Refrigerant 2 3 4 Noncombustible Packaging Dry Cleaning Establishments (Non-flammable or Non-explosive) 3 4 5 Electrical Substations 3 4 5 Factories (High Fire Load) 3 5 6 Freight Depots (High Fire Load) 3 5 6 Helicopter Landings (On Roof) 3 4 5 Laboratories (High Fire Load) 3 5 6 Laundries (Not Self-Serve) 3 4 5 Manufacturer Sales (High Fire Load) 3 5 6 Mattress Factories 3 4 5 Meat Packing Plants 3 4 5 Table 11.2.1.1.-M(1)(4)(6) (Cont'd) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group F Occupancy H.I.(5) Division 2 Small Medium Large Packaging Manufacturers (Cellulose) 3 4 5 Packaging Manufacturers (Noncombustible) 2 3 4 Packaging Manufacturers (Plastics) 3 5 6 Paper Processing Plants (Wet) 3 5 6 Planing Mills 3 5 6 Printing Plants 3 4 5 Public Heritage Buildings 3 3 — Repair Garages 3 5 6 Sample Display Rooms (High Fire Load) 3 5 6 Self-Service Storage Buildings 3 4 5 Service Stations (No Spray Painting) 3 5 6 Storage Rooms (High Fire Load) 3 5 6 Television Studios (No Audience) 3 4 5 Tire Storage 3 5 6 Warehouses (High Fire Load) 3 5 6 Welding Shops 3 5 6 Wholesale Rooms (High Fire Load) 3 5 6 Wood Working Factories 3 5 6 Workshops (High Fire Load) 3 5 6 Notes to Table 11.2.1.1.-M: (1) Building Size (Maximum)(2)(3) – 600 m2 / 2 storey Small – 800 m2 / 4 storey Medium – 600 m2 / 3 storey (Public Heritage Building) Medium – Any area / 6 storey not exceeding 18 m high, measured between grade and the floor level of the top Large storey – Over 18 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 buildings 1 500 m2 and over are to be sprinklered. Table 11.2.1.1.-N(1)(4) Hazard Index Forming Part of Sentences 11.2.1.1.(1) and (2) Group F Occupancy H.I.(5) Division 3 Small Medium Large Creameries 2 2 3 Factories (Low Fire Load) 2 3 4 Freight Depots (Low Fire Load) 2 3 4 Laboratories (Low Fire Load) 2 3 4 Manufacturers Sales (Low Fire Load) 2 3 4 Power Plants 3 4 5 Public Heritage Buildings 3 3 — Sample Display Rooms (Low Fire Load) 2 3 4 Storage Garages 2 3 4 Storage Rooms (Low Fire Load) 2 3 4 Warehouses (Low Fire Load) 2 3 4 Wholesale Rooms (Low Fire Load) 2 3 4 Workshops (Low Fire Load) 2 3 4 Notes to Table 11.2.1.1.-N: (1) Building Size (Maximum)(2)(3) – 800 m2 / 2 storey Small – 1 200 m2 / 4 storey Medium – 600 m2 / 3 storey (Public Heritage Building) Medium – Any area / 6 storey not exceeding 18 m high, measured between grade and the floor level of the top Large storey – Over 18 m, but not exceeding 36 m high, measured between grade and the floor level of the top storey H.I. = 5 – Over 36 m high, measured between grade and the floor level of the top storey 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 street. (4) For existing buildings facing multiple streets, see Sentence 11.2.1.1.(2) and Table 11.4.3.4.-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 11.4.3.3. For Evaluation and Upgrading of Early Warning/Evacuation Forming Part of Sentences 11.4.3.3.(1) and 11.4.3.4.(3) Early Warning and Evacuation, Part 11 Notes Evaluation and Upgrading Compliance Alternative(1) Early warning and evacuation to be checked against (a) access to exit widths based on occupant load in Subsection 3.3.1. or 9.9.3.; EARLY WARNING (b) exit widths based on occupant load in Subsection 3.4.3. or 9.9.3.; (a) Compliance alternatives as listed (c) exit signs in Subsection 3.4.5. or 9.9.11.; may be used. (d) lighting of exits, lighting of access to exits and emergency lighting in EVACUATION (2) Subsection 3.2.7. or 9.9.12.; (b) Compliance alternatives as listed (e) fire alarm system in Subsection 3.2.4. or 9.10.18.; to access to exit and exit widths, (f) smoke alarms in Subsection 9.10.19.; number of exits, door release (g) travel distance and number of exits in other Parts; and hardware, and travel distance (h) door release hardware requirements in Articles 3.3.1.13. and 3.4.6.16., may be used. and deficiencies shall be upgraded. Early warning and evacuation to be checked against (a) access to exit widths based on occupant load in Subsection 3.3.1. or 9.9.3.; (b) exit widths based on occupant load in Subsection 3.4.3. or 9.9.3.; EARLY WARNING (c) exit signs in Subsection 3.4.5. or 9.9.11.; (a) Compliance alternatives as listed (d) lighting of exits, lighting of access to exits and emergency lighting in may be used. Subsection 3.2.7. or 9.9.12.; (e) fire alarm system in Subsection 3.2.4. or 9.10.18.; (3) EVACUATION (f) smoke alarms in Subsection 9.10.19.; (b) Compliance alternatives as listed (g) travel distance and number of exits in other Parts; to access to exit and exit widths, (h) smoke control measures, and at least one elevator to permit transport of number of exits, door release firefighters to all floors in hotels whose floor level is more than 18 m high hardware, and travel distance measured between grade and floor level of the top storey as per may be used. Subsection 3.2.6., and (i) door release hardware requirements in Articles 3.3.1.13. and 3.4.6.16., and deficiencies shall be upgraded. Notes to Table 11.4.3.3.: (1) See Tables 11.5.1.1.-A to 11.5.1.1.-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 occupancy to one of greater hazard, and to increase in occupant load greater than 15%. Table 11.4.3.4.-A Additional Upgrading Forming Part of Sentences 11.2.1.1.(2) and 11.4.3.4.(1) New Major Increase of C.I. to Equal Additional Required Part 11 Occupancy H.I. to Support New Comments(1)(2) Upgrading Alternative Compliance (A.C.) (H.I.) Number(3) Major Occupancy (a) Provide early warning Comply with Table 11.2.1.1.-A system, or H.I. 2 C.I. 1 to 2 ratings for C.I. of 2 (b) Comply with any A.C.’s in Col. 4. (a) Provide early warning Comply with Table 11.2.1.1.-A system, or Combustible to H.I. 3 C.I. (1 or 2) to 3 ratings for C.I. of 3 (b) Comply with any A.C.’s in Combustible only. Col. 4. Combustible to Provide sprinklers in locations Comply with Table 11.2.1.1.-A Combustible. H.I. 4 C.I. (1, 2 or 3) to 4 where assemblies do not comply ratings for C.I. of 4 Noncombustible to with Table 11.2.1.1.-A Noncombustible. Provide sprinklers in locations Comply with Table 11.2.1.1.-A H.I. 5 C.I. 4 to 5 where assemblies do not comply ratings for C.I. of 5 with Table 11.2.1.1.-A Combustible to Provide sprinklers in locations Comply with Table 11.2.1.1.-A Combustible. H.I. 5 C.I. (1, 2 or 3) to 5 where assemblies do not comply ratings for C.I. of 5 Noncombustible to with Table 11.2.1.1.-A Noncombustible. C.I. 5 (Noncombustible) Comply with Table 11.2.1.1.-A (a) Provide sprinkler system, H.I. 6 to 6 ratings for C.I. of 6 plus 45 min roof rating. H.I. 6 C.I. 5 (Heavy timber) to 6 Comply with A.C. (b) Provide sprinkler system. (c) Provide 1 h rating plus H.I. 6 C.I. 5 (Combustible) to 6 Comply with A.C. sprinkler system. Comply with Table 11.2.1.1.-A (d) Provide sprinkler system, * For Noncombustible H.I. 6 C.I. (3 or 4) to 6* ratings for C.I. of 6 plus 45 min rating. construction only. (e) Provide 1 h rating plus ** For Combustible H.I. 6 C.I. (1, 2, 3 or 4) to 6** Comply with A.C. sprinkler system. construction only. Comply with Table 11.2.1.1.-A H.I. 7 C.I. 6 to 7 (a) Provide sprinkler system. ratings for C.I. of 7 Comply with Table 11.2.1.1.-A (b) Provide 1 h rating plus * For Noncombustible H.I. 7 C.I. (3, 4 or 5) to 7* ratings for C.I. of 7 sprinkler system. construction only. Table 11.4.3.4.-A (Cont'd) Additional Upgrading Forming Part of Sentences 11.2.1.1.(2) and 11.4.3.4.(1) New Major Increase of C.I. to Equal Additional Required Part 11 Occupancy H.I. to Support New Comments(1)(2) Upgrading Alternative Compliance (A.C.) (H.I.) Number(3) Major Occupancy Comply with Table 11.2.1.1.-A H.I. 8 C.I. 7 to 8 (a) Provide sprinkler system. ratings for C.I. of 8 Comply with Table 11.2.1.1.-A (b) Provide supervised sprinkler H.I. 8 C.I. 6 to 8 ratings for C.I. of 8 system. Comply with Table 11.2.1.1.-A (d) Provide sprinkler system, * For Noncombustible H.I. 8 C.I. (3, 4 or 5) to 8* ratings for C.I. of 8 plus 1 h rating. construction only. Notes to Table 11.4.3.4.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 11.4.3.4.-B(1) Additional Upgrading for Multiple Major Occupancies Forming Part of Sentences 11.4.2.3.(4) and 11.4.3.4.(4) New Major Occupancy Code Requirements Part 11 Compliance Alternative Table 3.1.3.1. and Subsection 9.10.9. For Existing Building If Sprinklered Where: Reduce to Reduce to All(2) 1 h rating required 45 min 30 min 2 h rating required 1.5 h 1h 3 h rating required 2h 1.5 h Notes to Table 11.4.3.4.B.: (1) For buildings with multiple major occupancies only, where there is a change in major occupancy. (2) See Section 11.4. Table 11.5.1.1.-A Compliance Alternatives for Assembly Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing heavy timber construction acceptable where construction is within 90% of A1 3.1.4.7. member sizes listed in Part 3. A2 3.1.5.2. to 3.1.5.4.; 3.1.5.8. Existing acceptable. Except for exposed foamed plastics, existing acceptable. To match existing, A3 3.1.5.9. to 3.1.5.12. materials may be added from on or off site. A4 3.1.5.18. to 3.1.5.20.; 3.1.5.25. Existing acceptable. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and A5 3.1.7.1. 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”. Existing assemblies required to be of noncombustible construction may be supported A6 3.1.7.5.(3) by combustible construction having at least the same fire-resistance rating as that supported. (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 carry A7 3.1.8.5.(2) 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. Fire dampers or fire stop flaps are not required to be installed in existing ducts at A8 3.1.8.7., 3.1.8.8. and 3.1.8.10. 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 functionally operable self-closing devices acceptable. A11 3.1.8.15. Existing functionally operable latching devices, excluding draw bolts, are acceptable. Existing transoms or sidelights located in required fire separations may be retained if A12 3.1.8.16. wired glass at least 6 mm thick is securely fixed to a steel frame with steel stops. Operable transoms shall be fixed closed. A13 3.1.8.17. to 3.1.8.19. Existing acceptable. Where the concealed space is being materially altered, smoke or heat detection in A14 3.1.11. that space in lieu of fire blocks and tied into fire alarm system is acceptable. A15 3.1.13.10. Existing acceptable. Table 11.5.1.1.-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 compartment and A16 3.2.3. 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 protected 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 acceptable. (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 A18 3.2.4. 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 system. A19 3.2.4.9.(2)(e) Does not apply to existing installations in buildings. A20 3.2.4.10.(5)(c) Does not apply to existing installations 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. Does not apply, except where a change in major occupancy occurs from a lesser A23 3.2.5.7. hazard index. Does not apply to buildings 6 storeys and less. Does not apply to sprinklered A24 3.2.5.8. to 3.2.5.11. buildings. Existing sprinkler systems in existing buildings that do not conform to NFPA 13 may be altered, added to, or extended from the existing system without complying with A25 3.2.5.12. 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. One egress door is allowed where the occupant load is not greater than 100 persons, A26 3.3.1.5. 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 acceptable. An existing dead-end corridor is permitted where the occupant load is not greater A28 3.3.1.9.(6) than 20 persons, provided travel distance is not greater than 6 m plus corridor width to “exit choice” point. Table 11.5.1.1.-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing door swings may remain in heritage buildings, existing or being restored, A29 3.3.1.11.; 3.3.1.12. with no change in major occupancy and with occupant load no greater than 100. Existing doors may remain in a heritage building, existing or being restored, with no A30 3.3.1.13. change in major occupancy. A31 3.3.1.20. Existing stained, etched, bevelled, leaded or figured glass acceptable. 3.3.5.4.(1); 3.3.5.7.(1), (3) and Need not comply where a gasketed door and self closer are provided in the existing A32 (4) 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. Existing travel distance acceptable where floor area is sprinklered and where there is A36 3.4.2.5.(1) no change in major occupancy. A37 3.4.3.2.(5) Need not comply where there is no increase in occupant load. Existing width of exits acceptable provided the occupant load is not more than 15% A38 3.4.3.2.(8) 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. Existing washrooms opening directly into an exit stairwell shall be separated from the A41 3.4.4.4.(8) exit stairwell by a 45 min closure. A42 3.4.5.1.(2) and (9) Existing illuminated legible exit signs are acceptable. 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. Existing acceptable in public heritage buildings or a change in occupancy with no A52 3.4.6.12. increase in occupant load. A53 3.4.6.16.(2) to (4) Existing functionally operable panic hardware acceptable. Table 11.5.1.1.-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Combustible fire escapes which are protected from fire in accordance with Sentence A54 3.4.7.2. 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 acceptable. 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%. Where the occupant load is increased by more than 15% above the capacity of the A68 3.7.4. existing facilities, facilities to be added to accommodate the increase. Existing accessible entrance acceptable. (See C.A. A75) Existing curb ramp conforming to Sentence 3.8.3.2.(3) is acceptable. A69 3.8.1.2. Existing principal entrance acceptable, provided at least one barrier-free entrance is available. A70 3.8.1.3.(1) Existing unobstructed width of 920 mm minimum is acceptable. Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length A71 3.8.1.3.(4) 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. Existing distance acceptable, provided not less than 1 200 mm plus the width of any A74 3.8.3.3.(11)(a) 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 handrails. 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 11.5.1.1.-A (Cont'd) Compliance Alternatives for Assembly Occupancies Forming Part of Article 11.5.1.1. 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 3.6.3.16A. 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 acceptable. A83 4.1.8. The requirements under this Subsection do not apply. Required outdoor air rates may be provided by mechanical, natural or combination of A84 6.3.1.1.(2) natural and mechanical means. Existing clearances acceptable where a sewage system is replaced with another A85 8.2.1.4. sewage system within the same class and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system. Existing clearances are acceptable where a replacement sewage system requires A86 8.2.1.4. lesser clearances than those required in Part 8 for the existing sewage system. Table 11.5.1.1.-B Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article 11.5.1.1. 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 foamed plastics, existing acceptable. B3 3.1.5.18. to 3.1.5.20.; 3.1.5.25. Existing acceptable. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and B4 3.1.7.1. 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”. Existing assemblies required to be of noncombustible construction may be supported B5 3.1.7.5.(3) by combustible construction having at least the same fire-resistance rating as that supported. (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 carry B6 3.1.8.5.(2) 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. Fire dampers or fire stop flaps are not required to be installed in existing ducts at B7 3.1.8.7., 3.1.8.8. and 3.1.8.10. penetrations of existing fire separations. For existing unlabelled doors in existing buildings, at least 45 mm solid core wood or B8 3.1.8.12.(1) metal clad are acceptable. Existing functionally operable self-closing devices acceptable, including devices with B9 3.1.8.13.(1) “pause” hardware. Between patient or inmate rooms, and corridors, existing “pause” type self-closing B10 3.1.8.14.(1) and (2) devices may be used as hold-open devices where functionally operable. B11 3.1.8.15. Existing functionally operable latching devices, excluding draw bolts, are acceptable. Except in zone or exit fire separations not required to be greater than 1 h, existing B12 3.1.8.16.(1) and (2) wired glass installations are acceptable provided they are set in steel or metal clad frames. B13 3.1.8.16.(3) Existing glass block acceptable. B14 3.1.8.17. to 3.1.8.19. Existing acceptable. Existing openings in existing ceiling membranes to remain. Existing openings may be moved to another location in the same ceiling provided the aggregate area of B15 3.1.9.5.(1) and (2) openings does not increase and are not cumulative, and the existing opening is blocked up to provide the same rating as the ceiling assembly. Table 11.5.1.1.-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Where the concealed space is being materially altered, provide smoke or heat B16 3.1.11. detection in that space in lieu of fire blocks and tie into fire alarm system. B17 3.1.14.; 3.1.15. Existing roof assemblies and roof coverings acceptable. Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 B18 3.2.3. (b) except relocation of units, to be restricted to the same fire compartment 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 protected with wired glass in steel frames conforming to Sentence 3.1.8.16.(2), or (ii) the building is sprinklered. B19 3.2.3.6.(3) Existing roof soffit projections acceptable. (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 B20 3.2.4. 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 system. B21 3.2.4.8.(2)(e) Does not apply to existing installations in buildings. B22 3.2.4.9.(5)(c) Does not apply to existing installations in buildings. Existing access to an existing occupancy acceptable. B23 3.2.5.1.; 3.2.5.2. Where the existing building is changed to a “B” occupancy, existing access are acceptable. Existing acceptable, except where a change in occupancy occurs to a “B1” or “B2” B24 3.2.5.3.(1) occupancy. B25 3.2.5.3.(2) Existing acceptable. Existing access route to existing occupancy is acceptable if the building is sprinklered. B26 3.2.5.4. to 3.2.5.6. Where existing building is changed to a “B” occupancy, access route shall be provided. Does not apply except where a change in occupancy occurs to a “B1” or “B2” B27 3.2.5.7.; 3.2.5.18. occupancy, where occupants are not normally evacuated from the building. Table 11.5.1.1.-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing sprinkler systems in existing buildings that do not conform to NFPA 13 may be altered, added to, or extended from the existing system without complying with B28 3.2.5.13. 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. Does not apply except where a change in occupancy occurs to a Group B B29 3.2.5.8. to 3.2.5.11. occupancy, where occupants are not normally evacuated from the building. Existing width of public corridors of not less than 914 mm is acceptable, except as B30 3.3.1.9. provided in Sentence 3.3.3.3.(2). Existing door swings may remain in heritage buildings, existing or being restored, B31 3.3.1.11.; 3.3.1.12. with no change in major occupancy and with occupant load no greater than 100. B32 3.3.1.12. Existing doors acceptable. B33 3.3.1.16. Existing acceptable. Existing non-conforming capacities of access to exits are acceptable, provided that the excessive capacity is no greater than 15% and, B34 3.3.1.17. (a) corridor fire separations are rated to Code plus early warning system provided, 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. Existing dead-end corridors acceptable with 30 min fire separation of corridor plus B37 3.3.3.3.(1) 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” point. B38 3.3.3.7. 45 min fire separation acceptable. Need not comply where a gasketed door and self closer are provided in the existing B39 3.3.5.4.(1); 3.3.5.7.(4) fire separation. B40 3.4.1.8. Existing stained, etched, bevelled, leaded or figured glass acceptable. Existing travel distance acceptable where floor area is sprinklered and provided fire B41 3.4.2.5.(1) 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 acceptable. 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 11.5.1.1.-B (Cont'd) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article 11.5.1.1. 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. Existing acceptable where there is no change in major occupancy or increase in B54 3.4.6.9. 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. Existing access to existing occupancy is acceptable B58 3.4.6.18.(4)(b) Where the existing building is changed to a “B” occupancy, existing access is acceptable. Combustible fire escapes 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 B59 3.4.7.2. 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 acceptable. B64 3.6.3.1.(1) to (5) 45 min fire separation acceptable. 3.6.3.3.(1), (3), (4)(a), (5) and B65 Existing acceptable. (10) B66 3.6.3.3.(2)(a) 45 min fire separation acceptable. Existing acceptable, except where a change in occupancy occurs to a Group B B67 3.6.4. occupancy. B68 3.7.1.3.(1) Existing acceptable. B69 3.7.2.1.(2) The minimum glass areas may be reduced by 50%. Where the occupant load is increased by more than 15% above the capacity of the B70 3.7.4. existing facilities, facilities to be added to accommodate the increase. Existing accessible entrance acceptable. (See C.A. B77) Existing curb ramp conforming to Sentence 3.8.3.2.(3) is acceptable. B71 3.8.1.2. Existing principal entrance acceptable, provided at least one barrier-free entrance is available. B72 3.8.1.3.(1) Existing unobstructed width of 920 mm minimum is acceptable. Table 11.5.1.1.-B (Cont’d) Compliance Alternatives for Care, Care and Treatment or Detention Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length B73 3.8.1.3.(4) 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. Existing distance acceptable, provided not less than 1 200 mm plus the width of any B76 3.8.3.3.(11)(a) 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 handrails. 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 3.8.3.16A. 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 acceptable. B85 4.1.8. The requirements under this Subsection do not apply. Existing clearances acceptable where a sewage system is replaced with another B86 8.2.1.4. sewage system within the same class and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system. Existing clearances are acceptable where a replacement sewage system requires B87 8.2.1.4. lesser clearances than those required in Part 8 for the existing sewage system. Table 11.5.1.1.-C Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing heavy timber construction acceptable where construction is within 90% of C1 3.1.4.7. member sizes listed in Part 3. C2 3.1.5.2. to 3.1.5.4.; 3.1.5.8. Existing acceptable. Except for exposed foamed plastics, existing acceptable. To match existing, C3 3.1.5.9. to 3.1.5.12. materials may be added from on or off site. C4 3.1.5.18. to 3.1.5.20.; 3.1.5.21. Existing acceptable. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and C5 3.1.7.1. 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”. Existing assemblies required to be of noncombustible construction may be supported C6 3.1.7.5.(3) by combustible construction having at least the same fire-resistance rating as that supported. Existing functional closures are acceptable and may be relocated within the same C7 3.1.8.1.(2); 3.1.8.6.(1) and (2) existing fire separation. (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 carry C8 3.1.8.5.(2) 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. Except for hotels, fire dampers or fire stop flaps are not required to be installed in C9 3.1.8.7. to 3.1.8.10. existing ducts at penetrations of existing fire separations. For existing unlabeled doors in existing buildings, at least 45 mm solid core wood or C10 3.1.8.12.(1) metal clad are acceptable. Except for residential occupancies, existing closure rating of 20 min will not be required where the entire floor area is sprinklered. In retirement homes, between a suite and a public corridor, existing ‘pause’ type self- C11 3.1.8.14.(1) and (2) closing devices may be used as hold-open devices where functionally operable. C12 3.1.8.15. Existing functionally operable latching devices, excluding draw bolts, are acceptable. Existing transoms or sidelights located in fire separations not required to be greater than 1 h may be retained if wired glass, at least 6 mm thick, is securely fixed to a C13 3.1.8.16. 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 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Where the concealed space is being materially altered, provide smoke or heat C15 3.1.11. detection in that space in lieu of fire blocks and tie into fire alarm system. Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 compartment and C16 3.2.3. 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 protected 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 acceptable. (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 C18 3.2.4. 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 system. C19 3.2.4.8.(2)(e) Does not apply to existing installations in buildings. C20 3.2.4.9.(5)(c) Does not apply to existing installations 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. (a) For buildings 6 storeys and less, existing access to existing occupancy is acceptable, and C25 3.2.5.4. to 3.2.5.6. (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. Existing water supply and hydrants are acceptable in buildings up to 6 storeys in C26 3.2.5.7. building height. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Does not apply to buildings 4 storeys and less. For existing buildings over 4 storeys in building height, existing standpipe and hose systems water supply is acceptable C27 3.2.5.8. to 3.2.5.11. 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. Existing sprinkler systems in existing buildings that do not conform to NFPA 13 may be altered, added to, or extended from the existing system without complying with C28 3.2.5.12. 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. 30 min is acceptable to separate corridors or exits in buildings not exceeding 6 storeys in building height, except that 45 min is required for exits in buildings exceeding 3 storeys in building height. For buildings exceeding 6 storeys in building height, 30 min is acceptable where smoke detectors are installed in corridors, except C29 3.3.1.4.(1); 3.3.4.2.(1) 1 h is required in exits. 30 min is acceptable to separate public corridors, exits or suites in hotels, provided fire 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. 3.3.1.5.(1)(c); Tables 3.3.1.5.-A C30 In Column 2, maximum area of room or suite to be unlimited. and 3.3.1.5.-B C31 3.3.1.9. Existing width of public corridors of not less than 914 mm is acceptable. Existing door swings may remain in heritage buildings, existing or being restored, C32 3.3.1.11.; 3.3.1.12. 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 wide. C34 3.3.1.14. Existing curved or spiral stairs acceptable. Existing non-conforming capacities of access to exits are acceptable, provided that the excessive capacity is no greater than 15% and, C35 3.3.1.17. (a) corridor fire separations are rated to Code plus early warning system provided, or (b) there are sprinklers, plus smoke alarms in suites. C36 3.3.1.18. Does not apply to heritage buildings. C37 3.3.1.20. Existing stained, etched, bevelled, leaded or figured glass acceptable. 3.3.4.2.(3)(b)(i) 30 min fire separation acceptable. C38 3.3.4.2.(3)(b)(ii), (iii) 45 min fire separation acceptable. For buildings 6 storeys and less, doorway from dwelling unit will be permitted to open directly into exit stairway or interior corridor served by a single exit if a fire alarm C39 3.3.4.4.(4) and (5) system complying with Subsection 3.2.4. is installed and the dwelling unit has a second and separate means of egress. Need not comply where a gasketed door and self closer are provided in the existing C40 3.3.5.4.(1) and 3.3.5.7.(4) fire separation. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative 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 level, C41 3.4.1.4. (b) areas of refuge where fire service rescue is possible and that comply 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 more 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. Fire separations of exits permitted in buildings: (a) 30 min, up to 3 storeys in building height, C48 3.4.4.1. (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. Existing washrooms opening directly into an exit stairwell shall be separated from the C49 3.4.4.4.(8) exit stairwell by a 45 min closure. C50 3.4.5.1.(2) and (9) Existing illuminated legible exit signs are acceptable. 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. (a) Except for retirement homes, existing acceptable. C60 3.4.6.9. (b) For retirement homes, existing acceptable provided there is no change in major occupancy or increase in occupant load greater than 15%. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. 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. Existing acceptable in heritage buildings provided the occupant load is not more than C63 3.4.6.12. 60. C64 3.4.6.16.(1) to (4) Existing functionally operable panic hardware acceptable. Except for retirement homes, combustible fire escapes which are protected from fire C65 3.4.7.2. 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 where explosion-resistant construction or venting is provided. C69 3.6.2.6. Existing acceptable. C70 3.6.2.7.(1) 2 h fire separation acceptable. C71 3.6.3.1.(1) to (5) 45 min fire separation acceptable up to 6 storeys. Where 2 h fire separation is required,1 h is acceptable. C72 3.6.3.3.(2) 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. Except for retirement homes, ceiling fire separation need not have a fire-resistance rating where sprinklering, subject to C.A. C27, of fire compartments on both sides of C75 3.6.4.2. vertical fire separation is provided and where such fire separation 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. Minimum room height shall be not less than 1 950 mm over the required floor area C78 3.7.1.1.(2) and any location that would normally be used as a means of egress. (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 interior room, created by an addition, shall not C79 3.7.2.1. require a window, provided there is an opening in a dividing wall occupying 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. Where the occupant load is increased by more than 15% above the capacity of the C80 3.7.4. existing facilities, facilities to be added to accommodate the increase. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing accessible entrance acceptable. (see C.A. C88) Existing curb ramp conforming to Sentence 3.8.3.2.(3) is acceptable. C81 3.8.1.2. Existing principal entrance acceptable, provided at least one barrier-free entrance is available. C82 3.8.1.3.(1) Existing unobstructed width of 920 mm minimum is acceptable. Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length C83 3.8.1.3.(4) 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. Existing distance acceptable, provided not less than 1 200 mm plus the width of any C86 3.8.3.3.(11)(a) 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 handrails. 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 acceptable. C94 4.1.8. The requirements under this Subsection do not apply. Required outdoor air rates may be provided by mechanical, natural or combination of C95 6.3.1.1.(2) natural and mechanical means. 6.3.2.3.; 6.3.2.6.; 6.3.2.6A.; C96 Existing acceptable. 6.3.2.10. In a building containing not more than four dwelling 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 C97 6.3.2.7.(1) suite 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. C98 6.3.2.9. Existing openings, grilles and diffusers acceptable. C99 6.3.3. Existing acceptable, provided products of combustion are safely vented. C100 6.5.1.1. Existing acceptable. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Carbon monoxide alarms may be battery operated or plugged into an electrical C101 6.9.4.4.(1) outlet. Existing clearances acceptable where a sewage system is replaced with another r1 C102 8.2.1.4. sewage system within the same class and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system. Existing clearances are acceptable where a replacement sewage system requires C103 8.2.1.4. lesser clearances than those required in Part 8 for the existing sewage system. 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 splits C104 9.3.2.1. 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 termite infestation. Except for secondary suites, in a dwelling 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 C105 9.5.3.1. (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 height 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. 9.6.1.2.(2) and (3); 9.6.1.4.(1) Existing doors and sidelights being reused or relocated need not conform if identified C108 and (2) or protected. C109 9.6.1.4.(3) Existing acceptable, if marked to indicate their existence and position. (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 interior room, created by an addition, shall not C110 9.7.2.3. require a window, provided there is an opening in a dividing wall occupying 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. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative C111 9.7.4. Existing acceptable. Replacement or extension of existing stair systems shall be exempt from the provisions of these Subsections, except that they shall have: C112 9.8.1. to 9.8.4. (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 acceptable. Where a stair complies with Subsection 9.8.4., an extension to a stair may contain C114 9.8.4.5. 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 acceptable, unless considered unsafe by chief building official. C118 9.8.9.6.(4) Existing acceptable. 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 C119 9.9.2.1.(1) to (2.1) is possible, or (c) combustible or noncombustible 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. (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 C121 9.9.3.2. (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. (a) In a building containing not more than four dwelling units, the minimum width of a public corridor may be 800 mm, or C122 9.9.3.3. (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. 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 C124 9.9.4.2. building at the first storey 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 acceptable. C126 9.9.5.4. Existing acceptable. Existing acceptable provided minimum 45 min fire separation and where explosion- C127 9.9.5.8. resistant construction or venting is provided. C128 9.9.5.9. Existing acceptable, provided that the enclosure has a 45 min fire-resistance rating. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. 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. Existing door swings acceptable. C132 9.9.6.5. Existing acceptable in public heritage buildings, where approved by chief building official. Where exit doors open onto a landing, they shall not extend beyond the face of the C133 9.9.6.6.(1) first riser. C134 9.9.6.8. Existing functionally operable passage or panic hardware acceptable. C135 9.9.7.4.(1)(a) Maximum area of existing room or suite does not apply. Except as provided in C.A. C139, in a single dwelling unit or a house with a C136 9.9.7.5. secondary suite, the Code requirement applies. Existing travel distance acceptable where floor area is sprinklered and provided fire C137 9.9.8.2.(1) separations comply with Part 9. In a building containing not more than four dwelling units or suites, existing glazed solid wood doors to lobby may remain in lieu of new 20 minute doors, provided the C138 9.9.8.5. 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. In a single dwelling unit or a house with a secondary suite, exit requirements are acceptable if at least one of the following conditions exists: (a) a door, including a sliding door, that opens directly to the exterior 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 installed in conformance with Subsection 9.10.19., (b) an exit that is accessible to more than one dwelling unit and provides the only means of egress from each dwelling unit, provided that the means of egress is separated from the remainder 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 C139 9.9.9 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 having a minimum area of 0.38 m² with no dimension less than 460 mm, Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative (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 common 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: C139 (Cont'd) 9.9.9. (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 and 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 smoke alarms installed in conformance with Subsection 9.10.19. In a single dwelling unit or a house with a secondary suite, existing acceptable, C140 9.9.10.1. where there is direct access to the exterior. In a single dwelling unit or a house with a secondary suite, the requirements under C141 9.9.11. this Subsection do not apply. Existing illuminated legible signs are acceptable for exit signs, if approved by chief C142 9.9.11.3. building official. In a single dwelling unit or a house with a secondary suite, the requirements under C143 9.9.12. this Subsection apply only where the condition described in (b) of C.A. C139 exists. Assemblies required to be of noncombustible construction may be supported by C144 9.10.1.1. 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 C28. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and C146 9.10.3. 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”. (a) Existing openings in existing wall or ceiling membranes to remain. (b) Existing openings may be moved to another location in the same wall or ceiling, C147 9.10.5.1. 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. Existing heavy timber construction acceptable where construction is within 90% of C148 9.10.6.2. member sizes listed in Part 3. C149 9.10.7. Existing acceptable for heritage buildings, subject to approval of chief building official. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative (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 dwelling unit and in common areas in e1 C150 9.10.8.1.; 9.10.8.3.; 9.10.8.8. conformance with Subsection 9.10.19., and (ii) smoke alarms are interconnected. (c) In a house with a secondary suite, the fire-resistance rating of the fire separation is waived where the building is sprinklered throughout. Assemblies required to be of noncombustible construction may be supported by C151 9.10.8.4. 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 separations. Ceiling fire separation need not have a fire-resistance rating where sprinklering, C153 9.10.9.12.(1) subject to C.A. C27, of fire compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h. C154 9.10.9.13.(1) Except for hotels, 30 min fire separation acceptable. In lieu of the 2 h fire separation, sprinklers may be used in the mercantile occupancy C155 9.10.9.13.(2) or medium-hazard industrial occupancy, with a 1 h fire separation. (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, 9.10.9.16.(1) and (3); (i) smoke alarms are installed in every dwelling unit and in common areas in e1 C156 9.10.9.17.(1) conformance with Subsection 9.10.19., and (ii) smoke alarms are interconnected. (c) In a house with a secondary suite, the fire-resistance rating of the fire separation is waived where the building is sprinklered throughout. (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, e1 C157 9.10.10.3. (i) smoke alarms are installed in every dwelling unit and in common areas in conformance with Subsection 9.10.19., and (ii) smoke alarms are interconnected. (c) In a house with a secondary suite, the fire-resistance rating of the vertical fire separation is waived where service rooms are sprinklered. In an individual dwelling unit or a house with a secondary suite, a party wall with 1 h C168 9.10.11.2.(1) fire-resistance rating is acceptable. C169 9.10.13.1 Existing functional closures are acceptable subject to C.A.C8 and C160. In an individual dwelling unit or a house with a secondary suite, existing unlabelled doors at least 45 mm solid core wood or metal clad are acceptable. For existing C160 9.10.13.2.(1) closures, ratings of 20 min will not be required where the entire floor area is sprinklered. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative In a building containing not more than four dwelling units or suites, existing glazed C161 9.10.13.2.(1) solid wood doors to corridors may remain in lieu of new 20 min doors, provided they are not located in a dead-end corridor. Existing acceptable provided that wood door frames are secured with hinge screws C162 9.10.13.3. going through frame into the stud. Existing wired glass acceptable. C163 9.10.13.5. 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. C164 9.10.13.6. Existing steel door frames acceptable. C165 9.10.13.7. Existing glass block acceptable. C166 9.10.13.8. Existing sizes acceptable. C167 9.10.13.9. Existing operable latches acceptable. C168 9.10.13.10.(1) Existing functionally operable self-closing devices acceptable. Existing operable self-releasing electromagnetic hold-open device acceptable, and C169 9.10.13.11. except for hotels, fusible link hold-open devices acceptable. C170 9.10.13.12. Existing swings acceptable. 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 to serve more than one dwelling unit, provided smoke alarms are installed in each dwelling C171 9.10.13.13.(1) 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. In detached houses, semi-detached houses, townhouses and row houses containing r1 C172 9.10.13.13.(1) not more than two dwelling units, or houses with a secondary suite, existing acceptable. 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 installed in each dwelling C173 9.10.13.14.; 9.10.5.1. 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. C174 9.10.13.14.; 9.10.5.1. In an individual dwelling unit or a house with a secondary suite, existing acceptable. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative 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 limiting 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, 9.10.14.2.(2) and (3); (a) where the existing exposing building face has no unprotected openings, or the 9.10.14.4.(2); existing unprotected openings are to be filled in, the total allowable area of C175 unprotected openings may be installed in the new exposing building face, or 9.10.15.2.(3) and (4); 9.10.15.4.(9) (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 new 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. Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 C176 9.10.14.4.; 9.10.15.4. (b) except relocation of units, to be restricted to the same fire compartment 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 protected with wired glass in steel frames conforming to Sentence 3.1.8.16.(2), or (ii) the building is sprinklered. C177 9.10.16.2.(1) Where balloon framing is exposed during renovation, fire blocks shall be provided. (a) Subject to approval by the chief building official, existing fire alarm system may remain 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 C178 9.10.18. 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 system. C179 9.10.19.4. Smoke alarms may be battery operated. C180 9.10.20. Existing access acceptable. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Where a house contains a secondary suite, each dwelling unit shall be separated from every other space in the house in which noise may be 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, C181 9.11.1.1. (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 assembly 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. Used masonry may be reused for patching and filling openings to match adjacent C186 9.20.2.2. work. Used interior brick may not be used for exterior applications. C187 9.20.3. Archaic mortars may be used to match existing jointing. C188 9.20.4.1. Sound jointing techniques may be employed to match existing archaic joints. Corbelling may be constructed to match existing or original details, provided that it is C189 9.20.12.1. structurally adequate for the proposed use. Existing acceptable, provided the products of combustion are safely vented and C190 9.21. provided no fire hazard is created. Sound period materials, designs and techniques may be employed in recreated C191 9.22.1. to 9.22.7. fireplaces, provided no fire hazard is created. Existing need not comply with Article 9.22.1.4. C192 9.23. Existing acceptable. C193 9.24. Existing acceptable. A vapour barrier may consist of paint or other coating with specified perm rating such C194 9.25. as two coats of leafing aluminum pigmented paint. Existing acceptable, except when removing and replacing shingles, comply with the C195 9.26. eave protection requirements of Subsection 9.26.5. C196 9.27. Existing acceptable. All replacement or recreation of existing stucco may be compatible with the existing C197 9.28. materials and application. Table 11.5.1.1.-C (Cont'd) Compliance Alternatives for Residential Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing acceptable. All replacement or recreation of existing plaster may be C198 9.29.4. compatible with the existing materials and application. In an individual dwelling unit or a house with a secondary suite, rooms or spaces C199 9.32. shall be ventilated by natural means in accordance with Subsection 9.32.2. or by providing adequate mechanical ventilation. Carbon monoxide alarms may be battery operated or plugged into an electrical r1 C200 9.32.3.9C. outlet. 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 installed in each dwelling unit and provided a smoke detector is r1 C201 9.33.1.1. 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. Sound, used or antique appliances are acceptable, provided that: (a) visual examination shows no excessive weakening by corrosion or other damage, C202 9.33.5.3. (b) no structural parts are missing, (c) no cracks are present in the components intended to support the appliance or enclose the fire, and (d) loading and ash removal door latches and hinges hold the door closed. 9.33.6.5.(1); 9.33.6.6.(1) to (3), C203 Existing acceptable. (5), (11) and (12) Where the duct system is being altered, lesser amounts and extent of insulation will C204 9.33.6.6.(8) be permitted. In a building containing not more than four dwelling 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 C205 9.33.6.13.(7.1) suite 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. Sound used materials shall be acceptable for reuse, subject to the following limitations: C206 9.38. (a) visual examination shows no excessive weakening by holes, notches, nail splits or other damage, and (b) logs have not been subjected to termite infestation. (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, C207 12.2.1.2.(3) “Energy Efficiency for Housing”. (c) Existing previously occupied log houses that are dismantled and reconstructed are exempt from Article 3.1.1.6. of MMA Supplementary Standard SB-12, “Energy Efficiency for Housing”. Table 11.5.1.1.-D/E Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing heavy timber construction acceptable where construction is within 90% of DE1 3.1.4.7. member sizes listed in Part 3. DE2 3.1.5.2. to 3.1.5.4.; 3.1.5.8. Existing acceptable. Except for exposed foamed plastics, existing acceptable. To match existing, DE3 3.1.5.9. to 3.1.5.12. materials may be added from on or off site. DE4 3.1.5.18. to 3.1.5.20.; 3.1.5.25. Existing acceptable. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and DE5 3.1.7.1. 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”. Existing assemblies required to be of noncombustible construction may be supported DE6 3.1.7.5.(3) by combustible construction having at least the same fire-resistance rating as that supported. Existing functional closures are acceptable and may be relocated within the same DE7 3.1.8.1.(2); 3.1.8.6. existing fire separation. (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 doors which carry existing 1.5 h labels DE8 3.1.8.5.(2) 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. Fire dampers or fire stop flaps are not required to be installed in existing ducts at DE9 3.1.8.7., 3.1.8.8. and 3.1.8.10. penetrations of existing fire separations. For existing unlabelled doors in existing buildings, at least 45 mm solid core wood or DE10 3.1.8.12.(1) metal clad are acceptable. DE11 3.1.8.15. Existing functionally operable latching devices, excluding draw bolts, are acceptable. Existing transoms or sidelights located in required fire separations may be retained if DE12 3.1.8.16. 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. DE13 3.1.8.17. to 3.1.8.19. Existing acceptable. Where the concealed space is being materially altered, smoke or heat detection in DE14 3.1.11. that space in lieu of fire blocks and tied into fire alarm system is acceptable. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 compartment and DE15 3.2.3. 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 protected with wired glass in steel frames conforming to Sentence 3.1.8.16.(2), or (ii) the building is sprinklered. DE16 3.2.3.6.(3) Existing roof soffit projections acceptable. DE17 3.2.3.17. Need not comply for “E” occupancy. (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 DE18 3.2.4. 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 system. DE19 3.2.4.8.(2)(e) Does not apply to existing installations in buildings. DE20 3.2.4.9.(5)(c) Does not apply to existing installations in buildings. DE21 3.2.5.1.; 3.2.5.2. Existing acceptable. DE22 3.2.5.3. Existing access acceptable. DE23 3.2.5.4. to 3.2.5.6. Existing acceptable provided the building is sprinklered throughout. Does not apply, except where a change in major occupancy occurs from a lesser DE24 3.2.5.7. hazard index. Does not apply to buildings 6 storeys and less. DE25 3.2.5.8. to 3.2.5.11. Does not apply to sprinklered buildings. Existing sprinkler systems in existing buildings that do not conform to NFPA 13 may be altered, added to, or extended from the existing system without complying with DE26 3.2.5.13. 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. 3.3.1.5.(1)(c); DE27 In Column 2, maximum area of room or suite to be unlimited. Tables 3.3.1.5.-A and 3.3.1.5.-B Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE28 3.3.1.9.(1) Existing width of public corridors of not less than 914 mm is acceptable. Existing door swings may remain in heritage buildings, existing or being restored, DE29 3.3.1.11.; 3.3.1.12. with no change in major occupancy and with occupant load no greater than 100. DE30 3.3.1.13. Existing doors acceptable, provided not less than 600 mm wide. DE31 3.3.1.16. Existing curved stairs acceptable. Existing non-conforming capacities of access to exits are acceptable, provided that: (a) the increase in occupant load is not greater than 15%, DE32 3.3.1.17. (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. DE33 3.3.1.18. Does not apply to heritage buildings. DE34 3.3.1.20. Existing stained, etched, bevelled, leaded or figured glass acceptable. Need not comply where a gasketed door and self closer are provided in the existing DE35 3.3.5.4.; 3.3.5.7.(4) fire separation. 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 grade, DE36 3.4.1.4. (b) areas of refuge where fire service rescue is possible and that comply 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”. DE37 3.4.1.8. Existing stained, etched, bevelled, leaded or figured glass acceptable. DE38 3.4.2.5.(1) Existing travel distance acceptable where floor area is sprinklered. Existing width of exits acceptable provided the occupant load is not more than 15% DE39 3.4.3.2.(8) above the exit capacity. DE40 3.4.3.3. Existing acceptable. DE41 3.4.3.4. Existing headroom clearance of not less than 1 980 mm is acceptable. Fire separations of exits permitted in buildings: (a) 30 min, up to 3 storeys in building height, DE42 3.4.4.1. (b) 45 min, up to 6 storeys in building height, (c) 1 h, over 6 storeys in building height. Existing washrooms opening directly into exit stairwell shall be separated from exit DE43 3.4.4.4.(8) stairwell by a 45 min closure. DE44 3.4.5.1.(2) and (9) Existing illuminated legible exit signs are acceptable. DE45 3.4.6.1. Existing acceptable. DE46 3.4.6.2. Existing acceptable, if visually apparent. DE47 3.4.6.3.(1) Existing acceptable with rise no greater than 3.7 m. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE48 3.4.6.4.(1) to (3) Existing acceptable. DE49 3.4.6.4. (4) and (5) Existing acceptable. DE50 3.4.6.5.(3) to (13) Existing acceptable. DE51 3.4.6.6.(1) to (5) Existing acceptable. DE52 3.4.6.7.(1) Existing acceptable. DE53 3.4.6.8. Existing acceptable. DE54 3.4.6.9. Existing acceptable. DE55 3.4.6.10.(2) to (6) Existing acceptable. DE56 3.4.6.11.(1) to (3) Existing acceptable. Existing acceptable in public heritage buildings or a change in occupancy with no DE57 3.4.6.12. increase in occupant load. DE58 3.4.6.13. Existing acceptable. DE59 3.4.6.14. Existing acceptable. DE60 3.4.6.16. Existing functionally operable panic hardware acceptable. Combustible fire escapes which are protected from fire in accordance with Sentence DE61 3.4.7.2. 3.2.3.13.(2) are permitted or may be reconstructed or recreated (as in the case of a heritage building). DE62 3.5.1. Existing acceptable except where building is classified under Subsection 3.2.6. DE63 3.6.2.1.(7) Existing fire separation of not less than 30 min is acceptable. DE64 3.6.2.2. Existing acceptable where explosion-resistant construction or venting is provided. DE65 3.6.2.6. Existing acceptable. DE66 3.6.2.7.(1) 2 h fire separation acceptable. DE67 3.6.3.1.(1) to (5) 45 min fire separation acceptable up to 6 storeys. (a) Where 2 h fire separation is required, 1 h is acceptable. DE68 3.6.3.3. (b) Where 1 h fire separation is required, 45 min is acceptable. (c) Existing need not comply with Sentence 3.6.3.3.(5). Ceiling fire separation need not have a fire-resistance rating where sprinklering, DE69 3.6.4.2. subject to C.A. DE26, of fire compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h. DE70 3.6.4.3.(1) Existing to meet flame-spread rating of 25 or to be sprinklered. DE71 3.6.4.4. to 3.6.4.6. Existing access acceptable. Where the occupant load is increased by more than 15% above the capacity of the DE72 3.7.4. existing facilities, facilities to be added to accommodate the increase. Existing accessible entrance acceptable. (See C.A. DE78) Existing curb ramp conforming to Sentence 3.8.3.2.(3) is acceptable. DE73 3.8.1.2. Existing principal entrance acceptable, provided at least one barrier-free entrance is available. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE74 3.8.1.3.(1) Existing unobstructed width of 920 mm minimum is acceptable. Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length DE75 3.8.1.3.(4) located not more than 30 m apart is acceptable. DE76 3.8.3.2.(3)(b) Existing curb ramp acceptable, provided width not less than 1 200 mm. DE77 3.8.3.3.(1) Existing doorway acceptable, provided not less than 800 mm wide. Existing distance acceptable, provided not less than 1 200 mm plus the width of any DE78 3.8.3.3.(11)(a) door that swings into the space in the path of travel. DE79 3.8.3.4.(1)(a) Existing ramp acceptable, provided not less than 870 mm between handrails. DE80 3.8.3.8.(5) Existing grab bar is acceptable. DE81 3.8.3.12. Existing universal washroom acceptable. DE82 3.8.3.13.(2)(g) Existing grab bar is acceptable. DE83 3.8.3.16. Existing drinking fountain conforming to Clauses 3.8.3.16.(2)(a) and (b) acceptable. DE84 4.1.8. The requirements under this Subsection do not apply. Required outdoor air rates may be provided by mechanical, natural or combination of DE85 6.3.1.1.(2) natural and mechanical means. 6.3.2.3.; 6.3.2.6; 6.3.2.6A.; DE86 Existing acceptable. 6.3.2.10. Existing openings, grilles and diffusers acceptable, subject to approval of chief DE87 6.3.2.9. building official. Existing clearances acceptable where a sewage system is replaced with another DE88 8.2.1.4. sewage system within the same class and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system. Existing clearances are acceptable where a replacement sewage system requires DE89 8.2.1.4. lesser clearances than those required in Part 8 for the existing sewage system. 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 splits DE90 9.3.2.1. 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 termite infestation. DE91 9.5.11.2. Existing acceptable, provided not less than 600 mm. 9.6.1.2.(2) and (3); Existing doors and sidelights being reused or relocated need not conform if identified DE92 9.6.1.4.(1) and (2) or protected. 9.6.1.4.(3) and (4); DE93 Existing acceptable. 9.8.8.1.(6) and (8) DE94 9.7.4. Existing acceptable. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Replacement or extension of existing stair systems shall be exempt from the provisions of these Subsections, except that they shall have: DE95 9.8.1. to 9.8.4. (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. DE96 9.8.3.2. Existing acceptable. DE97 9.8.4.3. and 9.8.4.7. Existing tapered or spiral stairs acceptable. DE98 9.8.5.1.(2) Existing ramps acceptable, where practical. DE99 9.8.7. Existing handrails acceptable, unless considered unsafe by chief building official. DE100 9.8.8. Existing guards acceptable, unless considered unsafe by chief building official. DE101 9.9.1.1. Existing acceptable. 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 DE102 9.9.2.1.(1) to (2.1) is possible, or (c) combustible or noncombustible 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). DE103 9.9.2.1.(3) Existing acceptable. DE104 9.9.3.2. Existing width of exits acceptable. DE105 9.9.3.3. Existing width of public corridors of not less than 965 mm is acceptable. DE106 9.9.3.4. Existing clear height of not less than 1 950 mm is acceptable. DE107 9.9.4.2. 30 min fire separation acceptable. DE108 9.9.5.4.; 9.9.5.5. Existing acceptable. Existing acceptable provided minimum 45 min fire separation and where explosion- DE109 9.9.5.8. resistant construction or venting is provided. DE110 9.9.5.9. Existing acceptable, provided that the enclosure has a 45 min fire-resistance rating. DE111 9.9.6.1. Existing acceptable. DE112 9.9.6.2. Existing clear opening height of not less than 1 950 mm is acceptable. DE113 9.9.6.3. Existing door widths are acceptable, provided exit widths comply with C.A. DE99. Existing door swings are acceptable. DE114 9.9.6.5. Existing acceptable in public heritage buildings, where approved by chief building official. Where exit doors open onto a landing, they shall not extend beyond the face of the DE115 9.9.6.6.(1) first riser. DE116 9.9.6.8. Existing functionally operable passage or panic hardware acceptable. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE117 9.9.7.4. Maximum area of existing room or suite to be unlimited. Existing travel distance acceptable where floor area is sprinklered and provided fire DE118 9.9.8.2.(1) separations comply with Part 9. Existing illuminated legible signs are acceptable for exit signs, if approved by chief DE119 9.9.11.3. building official. DE120 9.10.1.3.(8) to (10) Existing installations acceptable subject to C.A. DE25 and DE26. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and DE121 9.10.3. 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”. (a) Existing openings in existing wall or ceiling membranes to remain. (b) Existing openings may be moved to another location in the same wall or ceiling, DE122 9.10.5.1. 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. Existing heavy timber construction acceptable where construction is within 90% of DE123 9.10.6.2. the member sizes listed in Part 3. DE124 9.10.7. Existing acceptable for heritage buildings, subject to approval of chief building official. DE125 9.10.8.1. Existing 30 min rating acceptable. Existing sprinkler systems complying with C.A. DE26 and Sentence 3.2.2.17.(1) are DE126 9.10.8.2. acceptable. DE127 9.10.8.3. Existing acceptable, subject to approval of the chief building official. Assemblies required to be of noncombustible construction may be supported by DE128 9.10.8.4. combustible construction having at least the same fire-resistance rating as that supported. DE129 9.10.8.8. 30 min rating acceptable. DE130 9.10.9.7. to 9.10.9.9.; 9.10.9.11. Existing acceptable in existing fire separations. Ceiling fire separation need not be fire-resistance rated where sprinklering of fire DE131 9.10.9.12.(1) compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h. In lieu of the 2 h fire separation, sprinklers may be used in the mercantile occupancy DE132 9.10.9.13.(2) with a 1 h fire separation. DE133 9.10.9.15. 30 min fire separation acceptable. DE134 9.10.9.17.(1) 30 min fire separation acceptable. DE135 9.10.9.17.(3) Need not comply for mercantile occupancy. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE136 9.10.10.3.(1) 45 min fire separation acceptable. DE137 9.10.13.1. Existing functional closures are acceptable subject to C.A. DE8. DE138 9.10.13.2. Existing acceptable. Existing acceptable, provided that wood door frames are secured with hinge screws DE139 9.10.13.3. going through frame into the stud. Existing acceptable. Existing transoms or sidelights located in required fire separations may be retained if DE140 9.10.13.5. 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. DE141 9.10.13.6. Existing steel door frames acceptable. DE142 9.10.13.7. Existing glass block acceptable. DE143 9.10.13.8. Existing sizes acceptable. DE144 9.10.13.9. Existing operable latches acceptable. DE145 9.10.13.10.(1) Existing functionally operable self-closing devices acceptable. DE146 9.10.13.10.(2) Existing functionally operable self-closing devices acceptable in “E” occupancy. Existing operable self-releasing electromagnetic and fusible link hold-open devices DE147 9.10.13.11. acceptable. DE148 9.10.13.12. Existing swings acceptable. Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 DE149 9.10.14.4. (b) except relocation of units, to be restricted to the same fire compartment 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 protected with wired glass in steel frames conforming to Sentence 3.1.8.16.(2), or (ii) the building is sprinklered. DE150 9.10.16.2.(1) Where balloon framing is exposed during renovation, fire blocks shall be provided. (a) Subject to approval by the chief building official, existing fire alarm system may remain 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 DE151 9.10.18. 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 system. Table 11.5.1.1.-D/E (Cont'd) Compliance Alternatives for Business/Mercantile Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative DE152 9.10.20. Existing access acceptable. DE153 9.18.2. Existing access acceptable. DE154 9.18.3. Existing vents and ventilation acceptable. DE155 9.19. Existing acceptable. Used masonry may be reused for patching and filling openings to match adjacent DE156 9.20.2.2. work. Used interior brick may not be used for exterior applications. DE157 9.20.3. Archaic mortars may be used to match existing jointing. DE158 9.20.4.1. Sound jointing techniques may be employed to match existing archaic joints. Corbelling may be constructed to match existing or original details, provided that it is DE159 9.20.12.1. structurally adequate for the proposed use. Existing acceptable, provided the products of combustion are safely vented and DE160 9.21. provided no fire hazard is created. Sound period materials, designs and techniques may be employed in recreated DE161 9.22.1. to 9.22.7. fireplaces, provided no fire hazard is created. Existing need not comply with Article 9.22.1.4. DE162 9.23. Existing acceptable. DE163 9.24. Existing acceptable. Existing acceptable, except when removing and replacing shingles, comply with eave DE164 9.26. protection requirements in Subsection 9.26.5. DE165 9.27. Existing acceptable. All replacement or recreation of existing stucco may be compatible with the existing DE166 9.28. materials and application. Existing acceptable. All replacement or recreation of existing plaster may be DE167 9.29.4. compatible with the existing materials and application. Sound, used or antique appliances are acceptable, provided that: (a) visual examination shows no excessive weakening by corrosion or other damage, DE168 9.33.5.3. (b) no structural parts are missing, (c) no cracks are present in the components intended to support the appliance or enclose the fire, and (d) loading and ash removal door latches and hinges hold the door closed. Sound used materials shall be acceptable for reuse, subject to the following limitations: DE169 9.38. (a) visual examination shows no excessive weakening by holes, notches, nail splits or other damage, and (b) logs have not been subjected to termite infestation. Table 11.5.1.1.-F Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing heavy timber construction acceptable where construction is within 90% of F1 3.1.4.7. member sizes listed in Part 3. F2 3.1.5.2. to 3.1.5.4.; 3.1.5.8. Existing acceptable. Except for exposed foamed plastics, existing acceptable for “F2” and “F3” F3 3.1.5.9. to 3.1.5.12. 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. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and F5 3.1.7.1. 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”. Existing assemblies required to be of noncombustible construction may be supported F6 3.1.7.5.(3) by combustible construction having at least the same fire-resistance rating as that supported. Existing functional closures are acceptable and may be relocated within the same F7 3.1.8.1.(2); 3.1.8.6. existing fire separation. (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 carry F8 3.1.8.5.(2) 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. Fire dampers or fire stop flaps are not required to be installed in existing ducts at F9 3.1.8.7., 3.1.8.8. and 3.1.8.10. penetrations of existing fire separations. For existing unlabelled doors in existing buildings, at least 45 mm solid core wood or F10 3.1.8.12.(1) metal clad are acceptable. 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. Existing transoms or sidelights located in required fire separations may be retained if F13 3.1.8.16. 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 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Where the concealed space is being materially altered, smoke or heat detection in F15 3.1.11. that space in lieu of fire blocks and tied into fire alarm system is acceptable. 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 part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 F16 3.2.3. (b) except relocation of units, shall be restricted to the same fire compartment 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 protected 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 acceptable. F18 3.2.3.17. Need not comply for “F2” occupancy. (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 F19 3.2.4. 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 system. F20 3.2.4.8.(2)(e) Does not apply to existing installations in buildings. F21 3.2.4.9.(5)(c) Does not apply to existing installations 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. Does not apply, except where a change in major occupancy occurs from a lesser F25 3.2.5.7. hazard index. Does not apply to buildings 6 storeys and less of “F2” and “F3” occupancies. Does F26 3.2.5.8. to 3.2.5.11. not apply to sprinklered buildings. Existing sprinkler systems in existing buildings that do not conform to NFPA 13 may be altered, added to, or extended from the existing system without complying with F27 3.2.5.12. 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 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative 30 min is acceptable to separate public corridors or exits in buildings not exceeding 6 storeys in building height, except that 45 min is required for exits in buildings F28 3.3.1.4.(1) exceeding 3 storeys in building height. Except for exits, no rating required where floor areas are sprinklered. 3.3.1.5.(1)(c); Tables 3.3.1.5.-A For “F2” and “F3” occupancies in Column 2, maximum area of room or suite to be F29 and 3.3.1.5.-B unlimited. F30 3.3.1.9. Existing width of public corridors of not less than 914 mm is acceptable. Need not comply where connected balcony or area of refuge is provided in F31 3.3.1.9.(11) and (12) compliance with C.A. F38. Existing door swings may remain in heritage buildings, existing or being restored, F32 3.3.1.11.; 3.3.1.12. 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 wide. 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. Need not comply where a gasketed door and self closer are provided in the existing F37 3.3.5.6.; 3.3.5.7. fire separation. For “F2” and “F3” occupancies, 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 grade, F38 3.4.1.4. (b) areas of refuge where fire service rescue is possible and that comply 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. For “F2” and “F3” occupancies, existing travel distance acceptable where the floor F40 3.4.2.5.(1) area is sprinklered. For “F2” and “F3” occupancies, existing width of exits acceptable provided the F41 3.4.3.2.(8) 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. Fire separations of exits permitted in buildings: (a) 30 min, up to 3 storeys in building height, F44 3.4.4.1. (b) 45 min, up to 6 storeys in building height, (c) 1 h, over 6 storeys in building height. Existing washrooms opening directly into exit stairwell shall be separated from exit F45 3.4.4.4.(8) stairwell by 45 min closure. F46 3.4.5.1.(2) and (9) Existing illuminated legible exit signs are acceptable. F47 3.4.6.1. Existing acceptable. Table 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. 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. For “F2” and “F3” occupancies, existing acceptable in public heritage buildings or a F59 3.4.6.12. 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. Combustible fire escapes which are protected from fire in accordance with Sentence F62 3.4.7.2. 3.2.3.13.(2) are permitted or may be reconstructed or recreated (as in the case of a heritage building). Existing acceptable, except where building classified under Subsection 3.2.6. and F63 3.5.1. except where existing elevators 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 acceptable. F68 3.6.3.1.(1) to (5) 45 min fire separation acceptable up to 6 storeys. (a) Where 2 h fire separation is required, 1 h is acceptable. F69 3.6.3.3. (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). Ceiling fire separation need not be fire-resistance rated where sprinklering, subject to F70 3.6.4.2. 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 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing accessible entrance acceptable. (See C.A. F780) Existing curb ramp conforming to Sentence 3.8.3.2.(3) is acceptable. F74 3.8.1.2. Existing principal entrance acceptable, provided at least one barrier-free entrance is available. F75 3.8.1.3.(1) Existing unobstructed width of 920 mm minimum is acceptable. Existing unobstructed space not less than 1 500 mm in width and 1 500 mm in length F76 3.8.1.3.(4) 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 wide. Existing distance acceptable, provided not less than 1 200 mm plus the width of any F79 3.8.3.3.(11)(a) 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 handrails. 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. Storage garages with a total capacity of fewer than 20 motor vehicles need not have F86 6.3.1.3.(1), (3) and (4) mechanical ventilating systems if the downward slope of the floor to the outside door is 1 in 120 and the garage floor is above outside ground level. 6.3.2.3.; 6.3.2.6.; 6.3.2.6A.; F87 Existing acceptable for “F2” and “F3” occupancies. 6.3.2.10 F88 6.3.2.9. Existing openings, grilles and diffusers acceptable. Existing clearances acceptable where a sewage system is replaced with another F89 8.2.1.4. sewage system within the same class and the capacity of the replacement sewage system does not exceed the capacity of the existing sewage system. Existing clearances are acceptable where a replacement sewage system requires F90 8.2.1.4. lesser clearances than those required in Part 8 for the existing sewage system. Sound used lumber is acceptable for reuse without a grade stamp provided that: (a) visual examination shows no excessive weakening by holes, notches, nail splits or other damage, F91 9.3.2.1. (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 termite infestation. F92 9.5.11.2. Existing acceptable, provided not less than 600 mm. 9.6.1.2.(2) and (3); Existing doors and sidelights being reused or relocated need not conform if identified F93 9.6.1.4.(1) and (2) or protected. 9.6.1.4.(3) and (4); F94 Existing barriers acceptable. 9.8.8.1.(6) and (8) Table 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative F95 9.7.4. Existing acceptable. Replacement or extension of existing stair systems shall be exempt from the provisions of these Articles, except that they shall have: F96 9.8.1. to 9.8.4. (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 acceptable, unless considered unsafe by chief building official. F101 9.8.9.6.(4) Existing acceptable. F102 9.9.1.1. Existing acceptable. 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 F103 9.9.2.1.(1) to (3.1) is possible, or (c) combustible or noncombustible 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 acceptable. 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 acceptable. F109 9.9.5.4. Existing acceptable. Existing acceptable provided minimum 45 min fire separation and where explosion- F110 9.9.5.8. resistant construction or venting 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. Existing door swings acceptable. F113 9.9.6.5. Existing acceptable in public heritage buildings, where approved by chief building official. Where exit doors open onto a landing, such doors shall not extend beyond the face F114 9.9.6.6.(1) of the first riser. F115 9.9.6.8. Existing functionally operable passage or panic hardware acceptable. F116 9.9.7.4. Maximum area of existing room or suite does not apply. Table 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative Existing travel distance acceptable where floor area is sprinklered and provided fire F117 9.9.8.2.(1) separations comply with Part 9. Existing illuminated legible signs are acceptable for exit signs, if approved by chief F118 9.9.11.3. building official. F119 9.10.1.3.(8) to (10) Existing acceptable subject to C.A. F26 and F27. Fire-resistance ratings may also be used where they are based on: 1. HUD Rehabilitation Guidelines, “Guideline on Fire Ratings of Archaic Materials and Assemblies”. 2. DBR Technical Paper No. 194, “Fire Endurance of Protected Steel Columns and F120 9.10.3. 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”. Existing openings in existing wall or ceiling membranes to remain. Existing openings may be moved to another location in the same wall or ceiling, F121 9.10.5.1. 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. Existing heavy timber construction acceptable where construction is within 90% of F122 9.10.6.2. the member sizes listed in Part 3. F123 9.10.7. Existing acceptable for heritage buildings, subject to approval of chief building official. F124 9.10.8.1. Existing 30 min rating acceptable. Existing sprinkler systems complying with C.A. F26 and Sentence 3.2.2.17.(1) are F125 9.10.8.2. acceptable. F126 9.10.8.3. Existing acceptable, subject to approval of chief building official. Assemblies required to be of noncombustible construction may be supported by F127 9.10.8.4. 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 separations. Ceiling fire separation need not be fire-resistance rated where sprinklering of fire F130 9.10.9.12.(1) compartments on both sides of vertical fire separation is provided and where such fire separation is not required to exceed 1 h. In lieu of the 2 h fire separation, sprinklers may be used in the medium-hazard F131 9.10.9.13.(2) industrial occupancy with a 1 h fire separation. F132 9.10.9.15.; 9.10.9.17.(1) 30 min fire separation acceptable. 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 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative F135 9.10.13.2. Existing acceptable. Existing acceptable, provided that wood door frames are secured with hinge screws F136 9.10.13.3. going through frame into the stud. Existing wired glass acceptable. Existing transoms or sidelights located in required fire separations may be retained if F137 9.10.13.5. 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 acceptable. F140 9.10.13.8. Existing sizes acceptable. F141 9.10.13.9. Existing operable latches acceptable. F142 9.10.13.10.(1) Existing functionally operable self-closing devices acceptable. Existing operable self-releasing electromagnetic and fusible link hold-open devices F143 9.10.13.11. acceptable. F144 9.10.13.12. Existing swings acceptable. Existing windows. (a) Existing windows in walls may be relocated to another part of the wall, provided the existing opening is blocked up to provide the same fire rating for the wall, and the projection of the new opening, at a right angle 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 F145 9.10.14.4. (b) except relocation of units, to be restricted to the same fire compartment 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 protected 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. (a) Subject to approval by the chief building official, existing fire alarm system may remain 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 F147 9.10.18. 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 system. Table 11.5.1.1.-F (Cont'd) Compliance Alternatives for Industrial Occupancies Forming Part of Article 11.5.1.1. C.A. Number Division B Requirements Compliance Alternative F148 9.10.20. Existing access acceptable. F149 9.18.2. Existing access acceptable. F150 9.18.3. Existing vents and ventilation acceptable. F151 9.19.2.1. Existing access acceptable. Used masonry may be reused for patching and filling openings to match adjacent F152 9.20.2.2. work. Used interior brick may not be used for exterior applications. F153 9.20.3. Archaic mortars may be used to match existing jointing. F154 9.20.4.1. Sound jointing techniques may be employed to match existing archaic joints. Corbelling may be constructed to match existing or original details, provided that it is F155 9.20.12.1. structurally adequate for the proposed use. Existing acceptable, provided the products of combustion are safely vented and F156 9.21. provided no fire hazard is created. Sound period materials, designs and techniques may be employed in recreated F157 9.22.1. to 9.22.7. fireplaces provided no fire hazard is created. Existing need not comply with Article 9.22.1.4. F158 9.23. Existing acceptable. F159 9.24. Existing acceptable. F160 9.26. Existing acceptable. F161 9.27. Existing acceptable. All replacement or recreation of existing stucco may be compatible with the existing F162 9.28. materials and application. Existing acceptable. All replacement or recreation of existing plaster may be F163 9.29.4. compatible with the existing materials and application. Sound, used or antique appliances are acceptable, provided that: (a) visual examination shows no excessive weakening by corrosion or other damage, F164 9.33.5.3. (b) no structural parts are missing, (c) no cracks are present in the components intended to support the appliance or enclose the fire, and (d) loading and ash removal door latches and hinges hold the door closed. Sound used materials shall be acceptable for reuse, subject to the following limitations: F165 9.38. (a) visual examination shows no excessive weakening by holes, notches, nail splits or other damage, and (b) logs have not been subjected to termite infestation.

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

Understand any provision in seconds

BUILDAiD Assist explains any article of the building code in plain English — with exact citations, exceptions and related requirements.

Try BUILDAiD Beta

Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.