The Ontario Building Code | Sprinklers
3.2.8.7. Sprinklers
(1) In a building containing an interconnected floor space, storeysthat are wholly or partially within an interconnected floor space and all storeys below an interconnected floor spaceshall be sprinklered.
(2) In a building containing an interconnected floor space,
(a) waterflow alarm signals from sprinkler systems shall be transmitted to the fire department in conformance with Sentence 3.2.4.8.(4), and
(b) sprinkler systems shall be electrically supervised as required by Sentence 3.2.4.10.(3).
In Plain Language
This clause sets requirements for how occupancies and uses adjoining an interconnected floor space must be separated or protected, since not every occupancy type is suitable for direct exposure to an open atrium-style connection.
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.