Windows are one of the biggest sources for energy loss in a home. Fortunately, one of the standard components for an Energy Star-rated home is low-e windows.
"In Southern Nevada, we've noticed a definite increase in consumers choosing to install low-e windows in the home," said Bill Spencer, general manager of Milgard Windows' Las Vegas operations. "With rising utility costs, consumers are taking steps to conserve energy and installing low-e windows is one of the simplest ways to make a difference. Low-e windows cost a little more than a standard vinyl or aluminum window, which is what's primarily used in new-home construction in Southern Nevada, but the added cost will pay for itself with lower utility bills in the long run."
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Sunny windows make air conditioners works two to three times harder during the summer, according to the Energy Efficiency and Renewable Energy Network of the U.S. Department of Energy.
Homeowners interested in conserving energy should consider replacing single-pane windows with double-pane windows with high-performance glass such as low-e. More than half of the nation's homes, including many older houses in the Las Vegas Valley, have single-pane windows.
"Low-emissive, or low-e, coatings are put on window panes to reduce the amount of heat they give off through radiation," Spencer said. "In hot climates, where the outside of the window will typically be hotter than the inside, low-e coatings work best on the interior of the outside window pane. In cold climates, where the inside of the window is typically hotter than the outside, the low-e coatings work best on the inside window pane, on the side that faces toward the outside. If you're replacing old windows with new low-e windows, it is essential that they be installed correctly for our climate."
Spencer said low-e windows also can help reduce the amount of ultraviolet radiation entering a home by 75 percent, thereby reducing fading of fabrics, carpets and artwork.
Those who want to make their homes more energy efficient by making changes such as replacing windows can utilize energy-efficient mortgages and home improvement loans that offer favorable interest rates and low qualifying factors.
Nevada Energy Star Partners is a coalition of Southern Nevada home builders, developers, retailers, mortgage providers, energy consultants and local utilities promoting energy conservation.
Energy Star, created in 1992 by the Environmental Protection Agency, is the symbol for energy-efficient products sanctioned by the agency. Originally applied to computers, the program has been expanded to include all products that conserve energy and protect the environment, including appliances, lighting and office products.
