What Is NAFS?
NAFS is the North American Fenestration Standard/Specification for windows, doors, and skylights.
Why It Matters
NAFS performance class and grade help determine whether a product is suitable for a specific opening, exposure, building height, or jurisdiction.
Details
Issuing BodyAAMA / WDMA / CSA
RegionNorth America
ValidityStandard-based; certification depends on the listing program and product configuration