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

3.2.2.22.Group A, Division 1, One Storey, Sprinklered

(1) A building classified as Group A, Division 1 is permitted to conform to Sentence (2) provided (a) except as permitted by Sentences 3.2.2.7.(1) and 3.2.2.18.(2), the building is sprinklered throughout, (b) it is not more than 1 storey in building height, (c) no part of an auditorium floor is more than 5 m above or below grade, (d) no occupancy is above or below the auditorium other than one which serves it or is dependent on it, and (e) the occupant load of the auditorium floor is not more than 300. (2) The building referred to in Sentence (1) is permitted to be of combustible construction or noncombustible construction used singly or in combination, and (a) floor assemblies shall be fire separations with a fire-resistance rating not less than 45 min, (b) mezzanines shall have, if of combustible construction, a fire-resistance rating not less than 45 min, (c) loadbearing walls, columns and arches supporting an assembly required to have a fire-resistance rating shall (i) have a fire-resistance rating not less than 45 min, or (ii) be of noncombustible construction, and (d) loadbearing walls, columns and arches supporting a fire separation shall have a fire-resistance rating not less than that required for the fire separation.
← Previous3.2.2.21. Group A, Division 1, One Storey, Limited Area, SNext →3.2.2.23. Group A, Division 2, Any Height, Any Area, Sprin

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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.