In Plain Language

Plumbing must be designed and installed to accommodate the maximum relative structural movement provided for in the building's construction, preventing rigid plumbing connections from being damaged by normal building movement.

This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.