Code Library › Volume 1 › Section 5.2 — Loads and Procedures
PART 5 — ENVIRONMENTAL SEPARATIONUpdated for the 2024 Ontario Building Code

5.2.1.1.Exterior Environmental Loads

(1) Above ground climatic loads shall be determined according to MMAH Supplementary Standard SB-1, “Climatic and Seismic Data.” (2) Except as provided in Sentence (3), below ground exterior environmental loads not described in MMAH Supplementary Standard SB-1, “Climatic and Seismic Data,” shall be determined from existing geological and hydrological data or from site tests. (3) Where local design and construction practice has shown soil temperature analysis to be unnecessary, soil temperatures need not be determined. (See Note A-5.2.1.1.(3))
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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.