How Windows Work to Increase Energy Efficiency
When selecting a window, be sure to check for the Energy Star approval.
Many improvements have been made in the engineering of windows over the past twenty years. Windows are important to a home; they bring light and style and are a key element in energy efficiency. If your utility bills are out of control, it may be financially advantageous for you to replace your windows.
When beginning your search for the right windows, always look for the Energy Star approval. The U.S. Environmental Protection Agency and the U.S. Department of Energy joined forces to create the Energy Star program to promote energy efficient choices. Their list of approved products has helped American families save up to 30% on their energy bills. Any window of quality should include this rating, or it should be avoided. Pretty much all of the major window manufacturers, including Jeld-Wen Windows and Milgard Replacement Windows, advertise this rating.
A window’s U-Value is its overall ability to resist heat. The lower the U-value, the better the window’s energy efficiency. Single-paned windows work much like a drinking glass; the heat easily escapes through the thin glass. A dual-paned window has 1/2-3/4 inch air space between the panes that drastically reduces the flow of heat. Adding a gas such as carbon dioxide, krypton, or argon will reduce air flow even more. The heat-conductivity of the frame is also important. Most new frames such as vinyl, wood and aluminum are engineered for efficiency.
Window tints can help reduce the shading coefficient also. The shading coefficient measures the solar heat gain though the window. Bronze or green tints deflect solar rays. When selecting your windows, look for panels that have either the Suncoat® low-e or the advanced panel
If you are able to rearrange your window placement, look for ways to optimize or minimize sun exposure depending on what climate control you need. Proper installation of your windows is important. Contact one of our prescreened window contractors today to receive a free estimate.
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