NFRC, the National Fenestration Rating Council®, is a non-profit organization that administers the only uniform, independent rating and labeling system for the energy performance of windows, doors, and skylights. The NFRC rating allows you to compare the energy efficiency of products from different manufacturers.

Vytex NFRC ratings		Vytex NFRC ratings		Vytex NFRC ratings
Pella NFRC rating		Fiberglass NFRC rating