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

3.2.2.35.Group A, Division 4

(1) Except as permitted by Sentences (2) and (3), a building classified as Group A, Division 4 shall be of noncombustible construction. (2) Roof assemblies and supporting arches and columns are permitted to be of heavy timber construction. (3) A building classified as Group A, Division 4 is permitted to be of combustible construction provided (a) the occupant load is less than 1 500, and (b) the building has a limiting distance not less than 6 m. (4) Sprinklers shall be installed in all spaces below tiers of seats in a building classified as Group A, Division 4 if those spaces are used for occupancy. (See Note A-3.2.2.35.(4))
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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.