The purpose of this Guide is to help Code users understand and apply the provisions in Part 9 of the National Building Code of Canada 2015 (NBC). It is a companion document to NBC Part 9-not a stand-alone document.

This Guide has no legal status and is not intended for formal adoption: its purpose is solely informational. Sketches and diagrams illustrate principles only; other methods of satisfying the requirements may be equally valid. If there are cases where text in the Guide conflicts with a requirement in the NBC, the NBC requirement governs.