5.6.1.1.Required Protection from Precipitation (See Note A-5.6.1.1.)

(1) Except as provided in Sentence (2), where a building component or assembly is exposed to precipitation, the
     component or assembly shall
     (a) minimize ingress of precipitation into the component or assembly, and
     (b) prevent ingress of precipitation into interior space.

     (2) Protection from ingress of precipitation is not required where it can be shown that such ingress will not adversely
     affect any of
     (a) the health or safety of building users,
     (b) the intended use of the building, or
     (c) the operation of building services.

Next →5.6.1.2. Installation of Protective Materials

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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.