Code Library › Volume 1 › Section 9.10 — Fire Protection
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.10.8.2.Fire-Resistance Ratings in Sprinklered Buildings

(1) Except for roofs that support an occupancy, the requirements in Table 9.10.8.1. for roof assemblies to have a fire- resistance rating are permitted to be waived in sprinklered buildings where (a) the sprinkler system is electrically supervised in conformance with Sentence 3.2.4.9.(3), and (b) the operation of the sprinkler system will cause a signal to be transmitted to the fire department in conformance with Sentence 3.2.4.7.(4).

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

← Previous9.10.8.1. Fire-Resistance Ratings for Floors and RoofsNext →9.10.8.3. Fire-Resistance Ratings for Walls, Columns and A

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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.