The Ontario Building Code | Group B Sleeping Rooms
3.2.8.6. Group B Sleeping Rooms
(1) openings="http://thehandyforce.com/windows/" title ="Window installer in Toronto">openings provided for access between an interconnected floor space and a building or a portion of abuilding containing Group B major occupancy sleeping rooms shall be provided with vestibules that are provided with a mechanical air supply and that are designed,
(a) to restrict the passage of smoke from the interconnected floor space into the area containing sleeping rooms in accordance with the limits described in Sentence 3.2.8.4.(1), and
(b) in conformance with Clause 3.2.8.4.(3)(a).
In Plain Language
This clause addresses sprinkler protection requirements specific to an interconnected floor space, generally requiring sprinklers both within the space and on the floor areas that open onto it.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.