The easiest way to blog the interesting things you find on the web. Supports Blogger, Wordpress, Typepad, Live Journal, Movable Type, and Vox.learn more»
There is a lot more to windows than insulation levels, but in order to keep things simple we will focus on this aspect and cover energy efficient windows in more details in a future post. For windows, U-values are used that equate to the more recognized R-values used to define wall and roof insulation. The lower the U-value, the higher the R-value. In our region of the US, a U-value of 0.32 (R-3.1) is required to reach Energy Star status. Many are surprised at how low insulation values for energy efficient windows are compared to even the lowest R-19 code built wall.
copy and paste this stylesheet into your blog template...