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…
Tag Archives: Solar Heat-Gain Coefficient
24
May
May
Up to 30 percent of home energy losses are through the windows of a property. Why is this loss so huge? Many homes use poorly made windows, which can lose a very large amount of heat when it’s cold outside (we’ll start by focussing on this process rather than concentrating on how windows can cause a room to warm up when it’s hot outside and cool inside).