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NFRC 701 Accredited Testing Laboratories conduct physical tests (U-factor, Air Leakage, Solar Heat Gain Coefficient [SHGC], and Visible Transmittance) on window, door, skylight, TDD, and glazed wall systems in accordance with NFRC standards.
See the table below for the NFRC test methods each laboratory is accredited to perform.
Accredited Testing Laboratories
NFRC 102/FVT
NFRC 102 (TDD)
NFRC 201
NFRC 400
NFRC 202 (Translucent Panel VT)
NFRC 203 (TDD VT)
UL Laboratory Canada inc. 1320 Boul Lionel-Boulet Varennes, Quebec J3X 1P7 Canada Telephone: (855) 353-2532
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.