NAFS Specification for Windows, Doors, and Skylights

North American Fenestration Standard/Specification for
Windows, Doors, and Skylights (NAFS)

Effective January 1, 2014 , for buildings constructed under Part 9 of the 2012 BC Building Code, any windows, doors and skylights must be selected and installed in accordance with NAFS (North American Fenestration Standard) as well as A440S1-09 Canadian Supplement to AAMA/WDMA/CSA 101/I.S.2/A440, NAFS – North American Fenestration Standard/Specification for Windows, Doors, and Skylights.

As per subsection, of BCBC 2012, the performance grade of a window, door, or skylight must meet or exceed the minimum performance grade for the geographical area as determined utilizing the Canadian Supplement. It is required that the designer, architect, contractor, or homeowner indicate on the permit drawings the selected performance grade, as well as the water penetration resistance test pressure, for the window, door, or skylight.

To ensure compliance, installed windows, doors, and skylights must have a temporary label and permanent label, from the manufacturer, affixed to the product to confirm the standard. Canadian labeling requirements are identified in the Canadian Supplement section 6.4 which require a permanent label. Please see below for a sample labeling from a certification agency.

Temporary Label
Temporary Label
Permanent Label
Permanent Label

For questions regarding NAFS and the implementation please contact the City of Chilliwack Building Department at 604-793-2905.

This will only apply for Building Permits applied for on or after January 1, 2014.


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