Contact

Contact Us If you have any questions about the site, please feel free to contact us. We are always looking for ways to better serve our members. National Fenestration Rating Council6305 Ivy Lane, Suite 410Greenbelt, MD 20770Voice: 301-589-1776Fax: 301-589-3884 View...

Sustainability

Energy Efficiency & Sustainability We envision a world where windows, doors, and skylights figure prominently in creating smarter spaces, happier humans, and a prosperous planet. Our Mission NFRC is committed to advancing continuous improvement of windows, doors,...

FenStar Certification Program

FenStar™ Certification Program As a Partner in the ENERGY STAR program, you have made a business choice to be part of a brand that communicates the message about the energy efficiency of windows, doors, and skylights to consumers. The National Fenestration...

Windows Films

Window Film Saves Energy, Money, and Updates Buildings NFRC independently tests, certifies, and labels window films for their energy efficiency. According to the International Window Film Association (IWFA), whether window film is installed on a home, commercial...

Specifying Authority Information

Specifying Authority The Specifying Authority (SA) is the entity who specifies the fenestration products/ systems and components, and identifies the suppliers to be used on a commercial or non-residential project in order to meet design and performance requirements....