What Is A Good U-Factor For A Window?
The U-factor, also sometimes called the U-value, measures the rate of heat transfer through a material or building surface such as a wall, window, or door. It is commonly used to rate the energy efficiency of windows and doors, and while the science required for calculating U-factors can be rather complex, all you really need to know is that, for windows, a lower U-value is more desirable because it means that less heat is able to pass through the window. What passes as a “good” U-factor is largely contingent on the climate in which you live, as the ENERGY STAR® standards vary slightly from region to region. In a colder, northern climate, energy-efficient windows boast U-factors as low as 0.27 and 0.28, whereas central climate zones call for a U-factor of no more than 0.30. In warmer southern climates, where the majority of the home energy use is for cooling rather than heating the home, an energy-efficient U-factor could be as high as 0.40.
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When it comes to keeping your home in tip-top shape, American Home Design is the company to trust. From replacement windows and doors to outdoor living structures and water treatment systems, we specialize in a wide range of home improvement services and would be happy to assist you with all your needs. For top-notch products, expert installation, and friendly customer care, Nashville, Tennessee, homeowners have turned to us for more than 40 years.
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If you would like to learn more about the energy-saving benefits of our replacement windows, or what an ideal U-factor for your climate would be, contact American Home Design today. We proudly serve homeowners throughout Nashville and surrounding areas.