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ANSI/NFRC 500-2026 Procedure for determining fenestration product condensation resistance values

Publication Year

2026

Document Status

Current

Abstract

Method to measure the condensation resistance rating of windows, fully glazed doors, curtain wall systems, site-built products, sloped glazing systems, skylights, dynamic glazing products, and other fenestration products.

Document History

Supersedes ANSI/NFRC 500-2017.

Publisher Information

National Fenestration Rating Council

An independent US non-profit organization that establishes objective window, door, and skylight energy performance ratings to help compare products.