3.1.3.2 — Prohibition of Occupancy Combinations

(1) Except as provided in Sentences (2) to (12), the requirements in Section 3.3. shall apply. (2) A corridor need not be constructed as a public corridor where the travel distance, measured from inside the rental space to the nearest exit, is not more than 15 m provided that the corridor walls, (a) are of noncombustible construction, (b) have no openings other than doors and the doors are of solid construction, and (c) are continuous from the floor to the underside of the floor above, the ceiling or the roof. (3) Where the building is sprinklered, doors in a public corridor do not require to be equipped with self-closing devices and latches provided that the travel distance is measured from inside the rental space to the nearest exit. (4) Egress doors from a rental space are not required to swing in the direction of exit travel or swing on a vertical axis provided, (a) the area of the rental space is not more than 50 m2, and (b) the distance of travel within the rental space is not more than 10 m. (5) Where egress doors from a rental space open onto a corridor and swing in the direction of exit travel, the corridor shall be not less than 1 500 mm wide, and the doors shall be not more than 914 mm wide. (6) Where egress doors from a rental space open onto a corridor and do not swing in the direction of exit travel, the corridor shall be not less than 1 100 mm in width. (7) Dead end corridors are not permitted. (8) Corridors shall be provided with, (a) natural lighting that shall be uniformly distributed and be at least 4% of the corridor area, or (b) emergency lighting, conforming to Sentences 3.2.7.4. (1) and (2), that shall provide average levels of illumination not less than 10 lx at floor level. (9) Not more than two dwelling units shall be contained within one of the buildings on the property. (10) Except as provided in Sentence (11), dwelling units shall be separated from the remainder of the building by a fire separation having a fire-resistance rating not less than 2 h. (11) A fire separation is not required between a dwelling unit and an office where the office is not more than 50 m2 in area. (12) The fire separations required in Sentence 3.3.1.1. (1) need not be provided between individual rental spaces.

(1) A building classified as Group C, other than a retirement home, is permitted to conform to Sentence (2) provided, (a) it is sprinklered, (b) it is not more than 6 storeys in building height, (c) it has a height of not more than 18 m, measured between the floor level of the first storey and the floor level of the uppermost storey or mezzanine that is not a rooftop enclosure provided for elevator machinery, a stairway or a service room used for no purpose other than for service to the building, and (d) it has a building area of not more than, (i) 9 000 m2 if 1 storey in building height, (ii) 4 500 m2 if 2 storeys in building height, (iii) 3 000 m2 if 3 storeys in building height, (iv) 2 250 m2 if 4 storeys in building height, (v) 1 800 m2 if 5 storeys in building height, or (vi) 1 500 m2 if 6 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 Sentence (3), floor assemblies shall be fire separations with a fire-resistance rating not less than 1 h, (b) roof assemblies shall have a fire-resistance rating not less than 1 h, (c) except as provided by Sentence (4), where the roof assembly has a height greater than 25 m measured from the floor level of the first storey to the highest point of the roof assembly, the roof assembly shall, (i) be of noncombustible construction, or (ii) be constructed of fire-retardant treated wood conforming to Article 3.1.4.5., (d) mezzanines shall have a fire-resistance rating not less than 1 h, (e) [[NO_FORMULA]] Revoked: O. Reg. 89/23, s. 7 (1). (f) 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. (4) The construction of non-contiguous roof assemblies at different elevations is permitted to be evaluated separately to determine which roof assemblies are required to be constructed in accordance with Clause (2)(c). (5) Group A, Division 2 major occupancies, Group E major occupancies and storage garages located in a building or part of a building within the scope of this Article are permitted to be constructed in accordance with this Article, provided, (a) Group A, Division 2 major occupancies and Group E major occupancies are located below the third storey, and (b) storage garages are located below the fourth storey.

(1) A building classified as Group D is permitted to conform to Sentence (2) provided, (a) it is sprinklered, (b) it is not more than 6 storeys in building height, (c) it has a height of not more than 18 m, measured between the floor level of the first storey and the floor level of the uppermost storey or mezzanine that is not a rooftop enclosure provided for elevator machinery, a stairway or a service room used for no purpose other than for service to the building, and (d) it has a building area of not more than, (i) 18 000 m2 if 1 storey in building height, (ii) 9 000 m2 if 2 storeys in building height, (iii) 6 000 m2 if 3 storeys in building height, (iv) 4 500 m2 if 4 storeys in building height, (v) 3 600 m2 if 5 storeys in building height, or (vi) 3 000 m2 if 6 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 1 h, (b) roof assemblies shall have a fire-resistance rating not less than 1 h, (c) except as provided by Sentence (3), where the roof assembly has a height greater than 25 m measured from the floor level of the first storey to the highest point of the roof assembly, the roof assembly shall, (i) be of noncombustible construction, or (ii) be constructed of fire-retardant treated wood conforming to Article 3.1.4.5., (d) mezzanines shall have a fire-resistance rating not less than 1 h, (e) Revoked: O. Reg. 89/23, s. 8 (1). (f) loadbearing walls, columns and arches shall have a fire-resistance rating not less than that required for the supported assembly. (3) The construction of non-contiguous roof assemblies at different elevations is permitted to be evaluated separately to determine which roof assemblies are required to be constructed in accordance with Clause (2)(c). (4) Group A, Division 2 major occupancies, Group E major occupancies, Group F, Division 2 and 3 major occupancies and storage garages located in a building or part of a building within the scope of this Article are permitted to be constructed in accordance with this Article, provided, (a) Group A, Division 2 major occupancies, Group E major occupancies and Group F, Division 2 or 3 major occupancies are located below the third storey, and (b) storage garages are located below the fourth storey.