7.3.3.9.Expansion and Contraction

(1) The design and installation of every piping system shall, where necessary, include means to accommodate expansion
     and contraction of the piping system caused by temperature change or building shrinkage. (See Note A-7.3.3.9.(1))

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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.