Code Library › Volume 1 › Section 3.9 — Portable Classrooms
PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code

3.9.3.3.Fire Alarm Systems

(1) Except as provided in Sentences (2) and (3), the fire alarm system in the main school building shall be extended to the portable classrooms with a separate zone indicator on the annunciator. (2) The requirements in Sentence (1) need not be provided where there are not more than 12 portables on a site and where (a) the distance between portable classrooms is less than 6 m and the requirements of Subsection 3.2.3. are applied between the classrooms, or (b) the portable classrooms are in groups where (i) the distance between the classrooms is less than 6 m, (ii) the number of classrooms in a group does not exceed six, (iii) within a group of classrooms, the facing walls have a fire-resistance rating of 45 min, rated from inside the classroom, and (iv) the distance between groups of classrooms is 12 m or more. (3) The requirements in Sentence (1) need not be provided where the distance between portable classrooms is 6 m or more.
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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.