National Fenestration Rating Council (NFRC)

The National Fenestration Rating Council (NFRC) is an organization that develops standardized testing and rating systems for windows, doors, and skylights. Their goal is to provide clear, consistent information about how these products perform in energy efficiency, such as insulation qualities, solar heat gain, and visible light transmission. This helps consumers, builders, and architects compare products accurately and make informed decisions to improve building energy performance. NFRC labels or certifications on products indicate they meet specific standards, ensuring transparency and reliability in energy efficiency claims.