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Efficient Windows Collaborative » Donate Online

Donate to Help Support the Efficient Windows Collaborative Why Donate: Because Windows Matter Energy-efficient windows help reduce carbon emissions of homes and buildings, contributing to efforts to cut harmful greenhouse gas emissions affecting climate change. Your generous gift supports getting more high-performing, energy-efficient windows in homes across the country.

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Women in Fenestration » Donate Online

The Women in Fenestration Donation Fund will go toward supporting future events that will be offered at no charge to attendees.
About Us

The National Fenestration Rating Council (NFRC) is the trusted, independent, nonprofit certification body for the energy performance of windows, doors, and skylights. With more than 35 years of expertise, NFRC is the standard-bearer in fenestration performance certification, providing the public with objective data that helps stakeholders make informed decisions about product and building performance. NFRC certification ensures that products are tested using precise, scientifically validated methods, resulting in ratings that are fair, accurate and credible. Contact us at info@nfrc.org.

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