Code Library › Volume 1 › Section 3.2 — Building Fire Safety
PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code

3.2.2.82.Group F, Division 3, Any Height, Any Area, Sprinklered

r1 (1) Except as permitted by Articles 3.2.2.83. to 3.2.2.93., a building classified as Group F, 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 Sentences 3.2.2.7.(1) and 3.2.2.18.(2), the building shall be sprinklered throughout, (b) floor assemblies shall be fire separations with a fire-resistance rating not less than 2 h, except that floor assemblies are permitted to be fire separations with a fire-resistance rating not less than 1 h in a storage garage with all storeys constructed as open-air storeys, (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.
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Common questions about this part of the code

When is noncombustible construction required under the Ontario Building Code?When are automatic sprinklers required in a building in Ontario?What are the fire department access route requirements under the Ontario Building Code?When is a fire alarm system required in a building in Ontario?

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.