by amberline | Oct 11, 2023 | European Windows, Window Flanges, Windows
Window flanges are a relic of time before high-performance tape existed (asphalt products are not considered high-performance). The flange was back-caulked, and various water-resistant layers were splined and/or lapped to keep water away from the area. When installed...
by amberline | Sep 8, 2023 | European Windows, Window Performance, Windows
Beginning in 2021, Europe introduced new rules for Uw, or U factor. The Uw is the thermal transmittance of the complete window assembly. According to the new regulations, the Uw cannot be higher than 0.9 (W/m2K) or 0.1585 (BTU/hr.ft2.°F). What does this mean? •...
