This is part two of our posts on R-value. Â Read the first post to get a definition of R-value and find out what it means to you. Doors and Windows As much as we love, and need, doors and windows, they are not good for a building’s insulation value. Â Doors open and close, allowing air…
Tag Archives: SHGC
12
Nov
Nov
Australia’s Sustainable Window Alliance (SWA) is using science to measure the properties of energy efficient windows for residential applications. The groups says that while windows represent only 8% of a home’s exterior surface, they can account for up to 60% of unwanted heat loss in winter and 91% of unwanted heat gain in summer … and that…