Wood and Clad Wood The most common material for windows is wood, either alone or clad. One of the great advantages to wood besides the incomparable beauty, is that it can be milled into virtually any custom shape. If you don’t want a standard window, wood is for you. Also on the pro-side, it has great insulation value and if
Double Hung In a double hung window, both the upper and lower sash move. Look for the sashes that tilt in for easy cleaning. Ventilation is limited to half the area of the window. What to watch out for - The windows slide on metal or plastic tracks which make double hung windows only half as air-tight as casement windows.
The US Department of Energy partnering with the National Fenestration Rating Council have developed the NFRC label. It summarizes all of the main points that are important in deciding which windows will work for your home and your climate. These ratings apply to the whole window, not just the component parts. NFRC labels gauge energy performance and provide a way
