Code Library › Volume 1 › Section 4.2 — Foundations
PART 4 — STRUCTURAL DESIGNUpdated for the 2024 Ontario Building Code

4.2.4.12.Expanding and Deteriorating Rock

(1) Where rock that expands or deteriorates when subjected to unfavourable environmental conditions or to stress release is known to exist, this condition shall be fully investigated and provided for in the design.
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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.