The Ontario Building Code | Application

3.2.8.1. application

(1) Except as permitted by Article 3.2.8.2. and Sentence 3.3.4.2.(3), the portions of a floor areaor a mezzanine that do not terminate at an exterior wall, a firewall or a vertical shaft shall,

(a) terminate at a vertical fire separation having a fire-resistance rating not less than that required for the floor assembly and extending from the floor assembly to the underside of the floor or roof assembly above, or

(b) be protected in conformance with the requirements of Articles 3.2.8.3. to 3.2.8.11.

(2) The penetration of a floor assembly by an exitor a vertical service space shall conform to the requirements of Sections 3.4. to 3.6.

(3) A floor area containing sleeping rooms in a building of Group B, Division 2 or 3 major occupancy shall not be constructed as part of an interconnected floor space.

(4) Except as permitted in Sentence (5), an elementary or secondary school shall not,

(a) contain an interconnected floor space, or

(b) be located in an interconnected floor space.

(5) An interconnected floor space is permitted in an elementary or secondary school provided,

(a) the interconnected floor space consists of the first storey, and the storey next above or below it, but not both,

(b) the interconnected floor space is sprinklered,

(c) the portions of the upper floor area that do not terminate at an exterior wall, a firewall or a vertical shaft shall terminate at a vertical fire separation extending from the floor assembly to the underside of the floor or roof assembly above,

(d) except as provided in Clause (e), the fire separation required in Clause (c) need not have a fire-resistance rating,

(e) where a corridor is located immediately adjacent to the fire separationrequired in Clause (c), the fire separation shall have a fire-resistance rating of not less than 30 min, and

(f) where a portion of a floor area is not within the interconnected floor space, the required access to exitfrom this portion of the floor area shall not lead through the interconnected floor space.