4.2.4.10.Permafrost

(1) Where conditions of permafrost are encountered or proven to exist, the design of the foundation shall be based upon
  analysis of these conditions by a person especially qualified in that field of work.

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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.