Vinyltek is NAFS certified

NAFS Compliance is in full effect

NAFS compliant

The North American Fenestration Standard (NAFS), often referred to as a Harmonized Standard, is in full effect for Windows, Doors and Skylights.

We only ship product that is NAFS compliant, and displays the design pressure lab test results on our labels. If you are buying windows without the certification or labelling, beware, your local inspector could reject and cause you to remove windows without!