jswizzle3737/ontario_laws_and_regs huggingface dataset:
3.2.1.3. Roof Considered as a Wall (1) For the purposes of this Section any part of a roof that is pitched at an angle of 60° or more to the horizontal and is adjacent to a space intended for occupancy within a building shall be considered as part of an exterior wall of the building.
3.2.1.4. Floor Assembly over Basement (1) Except as permitted by Sentences 3.2.2.42.(3), 3.2.2.43.(3), 3.2.2.45.(3), 3.2.2.46.(3), 3.2.2.47.(3) or 3.2.2.48.(3), a floor assembly immediately above a basement shall be constructed as a fire separation having a fire-resistance rating conforming to the requirements of Articles 3.2.2.20. to 3.2.2.83. for a floor assembly, but not less than 45 min. (2) All loadbearing walls, columns and arches supporting a floor assembly immediately above a basement shall have a fire-resistance rating not less than that required by Sentence (1) for the floor assembly.
3.2.1.5. Fire Containment in Basements (1) Except as permitted by Sentences (2) and 3.2.2.15.(3), in a building in which an automatic sprinkler system is not required to be installed by Articles 3.2.2.20. to 3.2.2.83., every basement shall (a) be sprinklered, or (b) be subdivided into fire compartments not more than 600 m2 in area by a fire separation having a fire-resistance rating not less than that required for the floor assembly immediately above the basement. (2) An open-air storey need not conform to Sentence (1). 3.2.2.Building Size and Construction Relative to Occupancy
3.2.2.1. Application (1) Except as permitted by Article 3.2.2.3., a building shall be constructed in conformance with this Subsection to prevent fire spread and collapse caused by the effects of fire.
3.2.2.2. Special and Unusual Structures (1) A structure which cannot be identified with the characteristics of a building in Articles 3.2.2.20. to 3.2.2.83. shall be protected against fire spread and collapse in conformance with good fire protection engineering practice.
3.2.2.3. Exceptions to Structural Fire Protection (1) Fire protection is not required for (a) steel lintels above openings not more than 2 m wide in loadbearing walls and not more than 3 m wide in non-loadbearing walls, (b) steel lintels above openings more than 2 m wide in loadbearing walls and more than 3 m wide in non-loadbearing walls provided the lintels are supported at intervals of not more than 2 m by structural members with the required fire-resistance rating, (c) the bottom flanges of shelf angles and plates that are not a part of the structural frame, (d) steel members for framework around elevator hoistway doorways, steel for the support of elevator and dumbwaiter guides, counterweights and other similar equipment, that are entirely enclosed in a hoistway and are not a part of the structural frame of the building, (e) steel members of stairways and escalators that are not a part of the structural frame of a building, (f) steel members of porches, exterior balconies, exterior stairways, fire escapes, cornices, marquees and other similar appurtenances, provided they are outside an exterior wall of a building, and (g) loadbearing steel or concrete members wholly or partly outside a building face in a building not more than 4 storeys in building height and classified as Group A, B, C, D or F, Division 3 major occupancy provided the members are (i) not less than 1 000 mm away from any unprotected opening in an exterior wall, or (ii) shielded from heat radiation in the event of a fire within the building by construction that will provide the same degree of protection that would be necessary if the member was located inside the building, with the protection extending on either side of the member a distance equal to the projection of the member from the face of the wall.
3.2.2.4. Buildings with Multiple Major Occupancies (1) The requirements restricting fire spread and collapse for a building of a single major occupancy classification are provided in this Subsection according to its building height and building area. (2) If a building contains more than one major occupancy, classified in more than one Group or Division, the requirements of this Subsection concerning building size and construction relative to major occupancy shall apply according to Articles 3.2.2.5. to 3.2.2.8.
3.2.2.5. Applicable Building Height and Area (1) In determining the fire safety requirements of a building in relation to each of the major occupancies contained therein, the building height and building area of the entire building shall be used.
3.2.2.6. Multiple Major Occupancies (1) Except as permitted by Articles 3.2.2.7. and 3.2.2.8., in a building containing more than one major occupancy, the requirements of this Subsection for the most restricted major occupancy contained shall apply to the whole building.
3.2.2.7. Superimposed Major Occupancies (1) Except as permitted by Article 3.2.2.8., in a building in which one major occupancy is located entirely above another major occupancy, the requirements in this Subsection for each portion of the building containing a major occupancy shall apply to that portion as if the entire building was of that major occupancy. (2) If one major occupancy is located above another major occupancy, the fire-resistance rating of the floor assembly between the major occupancies shall be determined on the basis of the requirements of this Subsection for the lower major occupancy.
3.2.2.8. Exceptions for Major Occupancies (1) In a building in which the aggregate area of all major occupancies in a particular Group or Division is not more than 10% of the floor area of the storey in which they are located, these major occupancies need not be considered as major occupancies for the purposes of this Subsection, provided they are not classified as Group F, Division 1 or 2 occupancies. (2) A helicopter landing area on the roof of a building need not be considered a major occupancy for purposes of Subsection 3.2.2. where such landing area is not more than 10% of the area of the roof.
3.2.2.9. Crawl Spaces (1) For the purposes of Articles 3.2.1.4. and 3.2.1.5., a crawl space shall be considered as a basement if it is (a) more than 1 800 mm high between the lowest part of the floor assembly and the ground or other surface below, (b) used for any occupancy, (c) used for the passage of flue pipes, or (d) used as a plenum in combustible construction. (2) A floor assembly immediately above a crawl space is not required to be constructed as a fire separation and is not required to have a fire-resistance rating provided the crawl space is not required to be considered as a basement by Sentence (1).
3.2.2.10. Streets (1) Every building shall face a street located in conformance with the requirements of Articles 3.2.5.5. and 3.2.5.6. for access routes. (2) For the purposes of Subsections 3.2.2. and 3.2.5. an access route conforming to Subsection 3.2.5. is permitted to be considered as a street. (3) A building is considered to face 2 streets provided not less than 50% of the building perimeter is located within 15 m of the street or streets. (4) A building is considered to face 3 streets provided not less than 75% of the building perimeter is located within 15 m of the street or streets. (5) Enclosed spaces, tunnels, bridges and similar structures, even though used for vehicular or pedestrian traffic, are not considered as streets for the purpose of this Part.
3.2.2.11. Exterior Balconies (1) An exterior balcony shall be constructed in accordance with the type of construction required by Articles 3.2.2.20. to 3.2.2.83., as applicable to the occupancy classification of the building.
3.2.2.12. Exterior Passageways (1) An elevated exterior passageway used as part of a means of egress shall conform to the requirements of Articles 3.2.2.20. to 3.2.2.83. for mezzanines.
3.2.2.13. Occupancy on Roof (1) A portion of a roof that supports an occupancy shall be constructed in conformance with the fire separation requirements of Articles 3.2.2.20. to 3.2.2.83. for floor assemblies.
3.2.2.14. Roof-Top Enclosures (1) A roof-top enclosure for elevator machinery or for a service room shall be constructed in accordance with the type of construction required by Articles 3.2.2.20. to 3.2.2.83. (2) A roof-top enclosure for elevator machinery or for a service room, not more than one storey high, is not required to have a fire-resistance rating. (3) A roof-top enclosure for a stairway shall be constructed in accordance with the type of construction required by Articles 3.2.2.20. to 3.2.2.83. (4) A roof-top enclosure for a stairway need not have a fire-resistance rating nor be constructed as a fire separation.
3.2.2.15. Storeys below Ground (1) If a building is erected entirely below the adjoining finished ground level and does not extend more than one storey below that ground level, the minimum precautions against fire spread and collapse shall be the same as are required for basements under a building of 1 storey in building height having the same occupancy and building area. (2) If any portion of a building is erected entirely below the adjoining finished ground level and extends more than one storey below that ground level, the following minimum precautions against fire spread and collapse shall be taken: (a) except as permitted by Sentence (3), the basements shall be sprinklered, (b) a floor assembly below the ground level shall be constructed as a fire separation with a fire-resistance rating not less than (i) 3 h if the basements are intended for use as Group E or Group F, Division 1 or 2 occupancies, or (ii) 2 h if the basements are not intended for use as Group E or Group F, Division 1 or 2 occupancies, and (c) all loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the construction that they support. (3) If the first storey of a building is not required to be sprinklered, sprinklers are not required in the storey immediately below the first storey provided the storey below (a) contains only residential occupancies, and (b) has at least one unobstructed access opening conforming to Sentence 3.2.5.1.(2) installed on that storey for each 15 m of wall length in at least one wall required by this Subsection to face a street.
3.2.2.16. Heavy Timber Roof Permitted (1) Unless otherwise permitted by Articles 3.2.2.20. to 3.2.2.83., a roof assembly in a building up to 2 storeys in building height is permitted to be of heavy timber construction regardless of building area or type of construction required, provided the building is sprinklered. (2) If Sentence (1) permits a roof assembly to be of heavy timber construction, structural members in the storey immediately below the roof assembly are permitted to be of heavy timber construction.
3.2.2.17. Sprinklers in Lieu of Roof Rating (1) The requirements in Articles 3.2.2.20. to 3.2.2.83. for roof assemblies to have a fire-resistance rating are permitted to be waived provided (a) the building is sprinklered, (b) the sprinkler system in Clause (a) is electrically supervised in conformance with Sentence 3.2.4.9.(2), and (c) the operation of the sprinkler system in Clause (a) will cause a signal to be transmitted to the fire department in conformance with Sentence 3.2.4.7.(4).
3.2.2.18. Automatic Sprinkler System Required (1) If an automatic sprinkler system is required by Articles 3.2.2.20. to 3.2.2.83., the system shall conform to the requirements of Articles 3.2.4.7., 3.2.4.8., 3.2.4.9. 3.2.5.13.
3.2.2.19. Buildings Containing Impeded Egress Zones (1) A building containing an impeded egress zone and conforming to the appropriate requirements of Articles 3.2.2.20. to 3.2.2.83. is not required to conform to the requirements of Articles 3.2.2.36. and 3.2.2.37. for a Group B, Division 1 major occupancy provided (a) the building is sprinklered, (b) it is not more than 1 storey in building height, (c) it does not include (i) a contained use area, (ii) sleeping accommodation, (iii) a high hazard industrial occupancy, or (iv) a mercantile occupancy, (d) the building area is not more than 6 400 m2 if the building includes a medium hazard industrial occupancy, (e) the impeded egress zone does not extend beyond the boundaries of the fire compartment in which it is located, and (f) the occupant load of the impeded egress zone is not more than 100.
3.2.2.20. Group A, Division 1, Any Height, Any Area, Sprinklered (1) Except as permitted by Articles 3.2.2.21. and 3.2.2.22., a building classified as Group A, Division 1 shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered, (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less than 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.21. Group A, Division 1, One Storey, Limited Area (1) A building classified as Group A, Division 1 is permitted to conform to Sentence (2) provided (a) it is not more than 1 storey in building height, (b) it has less than 40% of the area of the building as 2 storeys for the purpose of (i) development of productions including preparation of scenery and costumes and rehearsal of performers, (ii) organization of performers, scenery and sound equipment, (iii) preparation by performers for a performance, (iv) managerial functions, or (v) toilets, rest rooms and similar public facilities, (c) it has no occupancy above or below the auditorium other than one which serves it or is dependent on it, (d) it is not more than 600 m2 in building area, and (e) the occupant load is not more than 600. (2) The building referred to in Sentence (1) is permitted to be of heavy timber construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations, (i) with a fire-resistance rating not less than 45 min, or (ii) of heavy timber construction, and (b) loadbearing walls, columns and arches shall (i) have a fire-resistance rating not less than that required for the supported assembly, or (ii) be of heavy timber construction.
3.2.2.22. Group A, Division 1, One Storey (1) A building classified as Group A, Division 1 is permitted to conform to Sentence (2) provided (a) it is not more than 1 storey in building height, (b) no part of an auditorium floor is more than 5 m above or below grade, (c) no occupancy is above or below the auditorium other than one which serves it or is dependent on it, and (d) the occupant load of the auditorium floor is not more than 300. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (c) roof assemblies shall have, if of combustible construction, a fire-resistance rating not less than 45 min, and (d) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction, and (e) loadbearing walls, columns and arches supporting a fire separation shall have a fire-resistance rating not less than that required for the fire separation.
3.2.2.23. Group A, Division 2, Any Height, Any Area, Sprinklered (1) Except as permitted by Articles 3.2.2.24. to 3.2.2.28., a building classified as Group A, Division 2 shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered, (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.24. Group A, Division 2, up to 6 Storeys, Any Area, Sprinklered (1) A building classified as Group A, Division 2, that is not limited by building area, is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, and (b) it is not more than 6 storeys in building height. (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) all loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.25. Group A, Division 2, up to 2 Storeys (1) A building classified as Group A, Division 2 is permitted to conform to Sentence (2) provided (a) it is not more than 2 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.25. Table 3.2.2.25. Maximum Building Area, Group A, Division 2, up to 2 Storeys Forming Part of Sentence 3.2.2.25.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

1 600

2 000

2 400


2

800

1 000

1 200


Column 1

2

3

4 (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations and, if of combustible construction, shall have a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less 45 min, (c) roof assemblies shall have, if of combustible construction, a fire-resistance rating not less than 45 min, except that in a building not more than 1 storey in building height, the fire-resistance rating is permitted to be waived provided the roof assembly is constructed as a fire-retardant treated wood roof system conforming to Article 3.1.14.1., and the building area is not more than (i) 800 m2 if facing one street, (ii) 1 000 m2 if facing 2 streets, or (iii) 1 200 m2 if facing 3 streets, and (d) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.
3.2.2.26. Group A, Division 2, up to 2 Storeys, Increased Area, Sprinklered (1) A building classified as Group A, Division 2 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 2 storeys in building height, and (c) it has a building area not more than (i) 4 800 m2 if 1 storey in building height, or (ii) 2 400 m2 if 2 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations and, if of combustible construction, shall have a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less 45 min, and (c) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.
3.2.2.27. Group A, Division 2, up to 2 Storeys, Sprinklered (1) A building classified as Group A, Division 2 is permitted to be of combustible construction or noncombustible construction used singly or in combination, provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 2 storeys in building height, and (c) it has a building area not more than (i) 2 400 m2 if 1 storey in building height with no basement, (ii) 1 200 m2 if 1 storey in building height, or (iii) 600 m2 if 2 storeys in building height.
3.2.2.28. Group A, Division 2, One Storey (1) A building classified as Group A, Division 2 is permitted to be of combustible construction or noncombustible construction used singly or in combination, provided (a) it is not more than 1 storey in building height, and (b) except as permitted by Sentence (2), it has a building area not more than (i) 400 m2 if facing one street, (ii) 500 m2 if facing 2 streets, or (iii) 600 m2 if facing 3 streets. (2) In a building referred to in Sentence (1) without a basement, the building area limits of Sentence (1) are permitted to be doubled provided a fire separation with a fire-resistance rating not less than 1 h is used to separate the building into fire compartments, each one of which does not exceed the area limits of Clause 1(b).
3.2.2.29. Group A, Division 3, Any Height, Any Area (1) Except as permitted by Articles 3.2.2.30. to 3.2.2.34., a building classified as Group A, Division 3 shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered if it is regulated by Subsection 3.2.6., (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less than 1 h, (d) if the building is not sprinklered, roof assemblies shall have a fire-resistance rating not less than 1 h, and (e) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.30. Group A, Division 3, up to 2 Storeys (1) A building classified as Group A, Division 3 is permitted to conform to Sentence (2) provided (a) it is not more than 2 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.30. Table 3.2.2.30. Maximum Building Area, Group A, Division 3, up to 2 Storeys Forming Part of Sentence 3.2.2.30.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

4 000

5 000

6 000


2

2 000

2 500

3 000


Column 1

2

3

4 (2) Except as permitted by Clauses (c) and (d), the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, (c) roof assemblies shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of heavy timber construction, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly, except that arches and structural members within the storey immediately below a roof assembly are permitted to be of heavy timber construction.
3.2.2.31. Group A, Division 3, up to 2 Storeys, Sprinklered (1) A building classified as Group A, Division 3 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered, (b) it is not more than 2 storeys in building height, and (c) it has a building area not more than (i) 12 000 m2 if 1 storey in building height, or (ii) 6 000 m2 if 2 storeys in building height. (2) Except as permitted by Clause (c) and Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly, except that arches are permitted to be of heavy timber construction.
3.2.2.32. Group A, Division 3, One Storey, Increased Area (1) A building classified as Group A, Division 3 is permitted to conform to Sentence (2) provided (a) it is not more than 1 storey in building height, and (b) it has a building area not more than (i) 2 400 m2 if facing one street, (ii) 3 000 m2 if facing 2 streets, or (iii) 3 600 m2 if facing 3 streets. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (b) roof assemblies shall have, if of combustible construction, a fire-resistance rating not less than 45 min, except that the fire-resistance rating is permitted to be waived provided the roof assembly is constructed as a fire-retardant treated wood roof system conforming to Article 3.1.14.1., and the building area is not more than (i) 1 200 m2 if facing one street, (ii) 1 500 m2 if facing 2 streets, or (iii) 1 800 m2 if facing 3 streets, and (c) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.
3.2.2.33. Group A, Division 3, One Storey, Sprinklered (1) A building classified as Group A, Division 3 is permitted to be of combustible construction or noncombustible construction used singly or in combination, provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 1 storey in building height, and (c) it has a building area not more than 7 200 m2.
3.2.2.34. Group A, Division 3, One Storey (1) A building classified as Group A, Division 3 is permitted to be of combustible construction or noncombustible construction used singly or in combination, provided (a) it is not more than 1 storey in building height, and (b) it has a building area not more than (i) 1 000 m2 if facing one street, (ii) 1 250 m2 if facing 2 streets, or (iii) 1 500 m2 if facing 3 streets.
3.2.2.35. Group A, Division 4 (1) Except as permitted by Sentences (2) and (3), a building classified as Group A, Division 4 shall be of noncombustible construction. (2) Roof assemblies and supporting arches and columns are permitted to be of heavy timber construction. (3) A building classified as Group A, Division 4 is permitted to be of combustible construction provided (a) the occupant load is less than 1 500, and (b) the building has a limiting distance not less than 6 m. (4) Sprinklers shall be installed in all spaces below tiers of seats in a building classified as Group A, Division 4 if those spaces are used for occupancy.
3.2.2.36. Group B, Division 1, Any Height, Any Area, Sprinklered (1) Except as permitted by Article 3.2.2.37., a building classified as Group B, Division 1 shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered, (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.37. Group B, Division 1, up to 3 Storeys, Sprinklered (1) A building classified as Group B, Division 1 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1) the building is sprinklered, (b) it is not more than 3 storeys in building height, and (c) it has a building area (i) that is not limited if the building is not more than 1 storey in building height, (ii) not more than 12 000 m2 if 2 storeys in building height, or (iii) not more than 8 000 m2 if 3 storeys in building height. (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.38. Group B, Division 2 or Division 3, Any Height, Any Area, Sprinklered (1) Except as permitted by Articles 3.2.2.39. to 3.2.2.41., a building classified as Group B, Division 2 or Division 3 shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered, (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.39. Group B, Division 2 or Division 3, up to 3 Storeys, Sprinklered (1) A building classified as Group B, Division 2 or Division 3 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 3 storeys in building height, and (c) it has a building area (i) that is not limited if the building is not more than 1 storey in building height, (ii) not more than 12 000 m2 if 2 storeys in building height, or (iii) not more than 8 000 m2 if 3 storeys in building height. (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.40. Group B, Division 2 or Division 3, up to 2 Storeys, Sprinklered (1) A building classified as Group B, Division 2 or Division 3 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 2 storeys in building height, and (c) it has a building area not more than (i) 2 400 m2 if 1 storey in building height, or (ii) 1 600 m2 if 2 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.41. Group B, Division 2 or Division 3, One Storey, Sprinklered (1) A building classified as Group B, Division 2 or Division 3 is permitted to be of combustible construction or noncombustible construction used singly or in combination, provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 1 storey in building height, and (c) it has a building area not more than 500 m2.
3.2.2.42. Group C, Any Height, Any Area (1) Except as permitted by Articles 3.2.2.43. to 3.2.2.48., a building classified as Group C shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) Reserved (b) except as permitted by Sentence (3), floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less 1 h, (d) if the building is not sprinklered, roof assemblies shall have a fire-resistance rating not less than 1 h, and (e) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(2), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 1 h but need not be constructed as fire separations.
3.2.2.43. Group C, up to 6 Storeys (1) A building classified as Group C is permitted to conform to Sentence (2) provided (a) it is not more than 6 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.43.A. or Table 3.2.2.43.B. Table 3.2.2.43.A. Maximum Building Area, Group C, up to 6 Storeys Forming Part of Sentence 3.2.2.43.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

unlimited

unlimited

unlimited


2

6 000

unlimited

unlimited


3

4 000

5 000

6 000


4

3 000

3 750

4 500


5

2 400

3 000

3 600


6

2 000

2 500

3 000


Column 1

2

3

4 Table 3.2.2.43.B. Maximum Building Area, Group C, up to 6 Storeys, Sprinklered Forming Part of Sentence 3.2.2.43.(1)  No. of Storeys

Maximum Area, m2


1

Unlimited


2

Unlimited


3

12 000


4

9 000


5

7 200


6

6 000


Column 1

2 (2) The building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence (3), floor assemblies shall be fire separations with a fire-resistance rating of not less than 1 h, (b) mezzanines shall have a fire-resistance rating of not less than 1 h, (c) if the building is not sprinklered, roof assemblies shall have a fire-resistance rating not less than 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(3), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 1 h but need not be constructed as fire separations.
3.2.2.44. Reserved
3.2.2.45. Group C, up to 4 Storeys, Sprinklered (1) A building classified as Group C is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 4 storeys in building height, and (c) it has a building area not more than (i) 7 200 m2 if 1 storey in building height, (ii) 3 600 m2 if 2 storeys in building height, (iii) 2 400 m2 if 3 storeys in building height, or (iv) 1 800 m2 if 4 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) except as permitted by Sentences (3) and (4), floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(2), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 1 h but need not be constructed as fire separations. (4) In a building in which there is no dwelling unit above another dwelling unit, the fire-resistance rating for floor assemblies entirely within the dwelling unit is waived.
3.2.2.46. Group C, up to 3 Storeys, Increased Area (1) A building classified as Group C is permitted to conform to Sentence (2) provided (a) it is not more than 3 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.46. Table 3.2.2.46. Maximum Building Area, Group C, up to 3 Storeys, Increased Area Forming Part of Sentence 3.2.2.46.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

2 400

3 000

3 600


2

1 200

1 500

1 800


3

800

1 000

1 200


Column 1

2

3

4 (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) except as permitted by Sentences (3) and (4), floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, (c) roof assemblies shall have a fire-resistance rating not less than 1 h, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(2), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 1 h but need not be constructed as fire separations. (4) In a building in which there is no dwelling unit above another dwelling unit, the fire-resistance rating for floor assemblies entirely within the dwelling unit is waived.
3.2.2.47. Group C, up to 3 Storeys (1) A building classified as Group C is permitted to conform to Sentence (2) provided (a) it is not more than 3 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.47. Table 3.2.2.47. Maximum Building Area, Group C, up to 3 Storeys Forming Part of Sentence 3.2.2.47.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

1 800

2 250

2 700


2

900

1 125

1 350


3

600

750

900


Column 1

2

3

4 (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) except as permitted by Sentences (3) and (4), floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction a fire-resistance rating not less than 45 min, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(2), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 45 min but need not be constructed as fire separations. (4) In a building in which there is no dwelling unit above another dwelling unit, the fire-resistance rating for floor assemblies entirely within the dwelling unit is waived.
3.2.2.48. Group C, up to 3 Storeys, Sprinklered (1) A building classified as Group C is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 3 storeys in building height, and (c) it has a building area not more than (i) 5 400 m2 if 1 storey in building height, (ii) 2 700 m2 if 2 storeys in building height, or (iii) 1 800 m2 if 3 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) except as permitted by Sentences (3) and (4), floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction a fire-resistance rating not less than 45 min, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) In a building that contains dwelling units that have more than 1 storey, subject to the requirements of Sentence 3.3.4.2.(2), the floor assemblies, including floors over basements, which are entirely contained within these dwelling units, shall have a fire-resistance rating not less than 45 min but need not be constructed as fire separations. (4) In a building in which there is no dwelling unit above another dwelling unit, the fire-resistance rating for floor assemblies entirely within the dwelling unit is waived.
3.2.2.49. Group D, Any Height, Any Area (1) Except as permitted by Articles 3.2.2.50. to 3.2.2.56., a building classified as Group D shall conform to Sentence (2). (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) except as permitted by Sentence 3.2.2.7.(1), the building shall be sprinklered if it is regulated by Subsection 3.2.6., (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, (c) mezzanines shall have a fire-resistance rating not less 1 h, (d) if the building is not sprinklered, roof assemblies shall have a fire-resistance rating not less than 1 h, except that in a building not more than 1 storey in building height this requirement is waived, and (e) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.50. Group D, up to 6 Storeys (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) it is not more than 6 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.50. Table 3.2.2.50. Maximum Building Area, Group D, up to 6 Storeys Forming Part of Sentence 3.2.2.50.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

not limited

not limited

not limited


2

7 200

not limited

not limited


3

4 800

6 000

7 200


4

3 600

4 500

5 400


5

2 800

3 600

4 320


6

2 400

3 000

3 600


Column 1

2

3

4 (2) The building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, (c) roof assemblies shall have a fire-resistance rating not less than 1 h, except that in a building not more than 1 storey in building height this requirement is waived, and (d) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.51. Group D, up to 6 Storeys, Sprinklered (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 6 storeys in building height, and (c) it has a building area (i) that is not limited if the building is not more than 2 storeys in building height, (ii) not more than 14 400 m2 if 3 storeys in building height, (iii) not more than 10 800 m2 if 4 storeys in building height, (iv) not more than 8 640 m2 if 5 storeys in building height, or (v) not more than 7 200 m2 if 6 storeys in building height. (2) Except as permitted by Article 3.2.2.16., the building referred to in Sentence (1) shall be of noncombustible construction, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.52. Group D, up to 4 Storeys, Sprinklered (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 4 storeys in building height, and (c) it has a building area not more than 3 600 m2. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) mezzanines shall have a fire-resistance rating not less than 1 h, and (c) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly.
3.2.2.53. Group D, up to 3 Storeys (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) it is not more than 3 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.53. Table 3.2.2.53. Maximum Building Area, Group D, up to 3 Storeys Forming Part of Sentence 3.2.2.53.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

4 800

6 000

7 200


2

2 400

3 000

3 600


3

1 600

2 000

2 400


Column 1

2

3

4 (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations and, if of combustible construction, shall have a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (c) roof assemblies shall have, if of combustible construction, a fire-resistance rating not less than 45 min, except that in a building not more than 1 storey in building height, the fire-resistance rating is permitted to be waived provided the roof assembly is constructed as a fire-retardant treated wood roof system conforming to Article 3.1.14.1., and the building area is not more than (i) 2 400 m2 if facing one street, (ii) 3 000 m2 if facing 2 streets, or (iii) 3 600 m2 if facing 3 streets, and (d) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.
3.2.2.54. Group D, up to 3 Storeys, Sprinklered (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) except as permitted by Sentence 3.2.2.7.(1), the building is sprinklered, (b) it is not more than 3 storeys in building height, and (c) it has a building area not more than (i) 14 400 m2 if 1 storey in building height, (ii) 7 200 m2 if 2 storeys in building height, or (iii) 4 800 m2 if 3 storeys in building height. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations and, if of combustible construction, shall have a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, and (c) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.
3.2.2.55. Group D, up to 2 Storeys (1) A building classified as Group D is permitted to conform to Sentence (2) provided (a) it is not more than 2 storeys in building height, and (b) it has a building area not more than the value in Table 3.2.2.55. Table 3.2.2.55. Maximum Building Area, Group D, up to 2 Storeys Forming Part of Sentence 3.2.2.55.(1)  No. of Storeys

Maximum Area, m2


Facing 1 Street

Facing 2 Streets

Facing 3 Streets


1

1 000

1 250

1 500


2

800

1 000

1 200


Column 1

2

3

4 (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations and, if of combustible construction, shall have a fire-resistance rating not less than 45 min, and (b) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction.