The National Fenestration Ratings Council (NFRC) board has approved Lawrence Berkeley National Laboratory's (LBNL) WINDOW 7.8.71 and THERM 7.8.71 for immediate use. Users could begin implementing WINDOW 7.8.71 / THERM 7.8.71 as of Friday, August 18, 2023, and the association "strongly recommends" that use of the new version be implemented by laboratories immediately on any [...]The post NFRC Issues Approval for Use of WINDOW/THERM 7.8.71 appeared first on DWM Magazine.