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If you are shopping for energy-efficient window replacements, you’ve probably noticed the alphabet soup of terminology. R-values, U-values, SHGC, and other labels and ratings can be confusing if you’re not sure what you’re looking for. Luckily, the contractors at Sterling Exteriors in Cincinnati, OH, know what these terms mean and how to find the right windows for your home. Below, they explain a few common ones so you can shop smart.

3 Window Replacement Terms Explained

1. R- & U-Values

Both of these values measure heat flow. The U-value indicates the rate at which heat flows through the window, while the R-value measures the resistance of the glass to the flow of heat. The lower the U-factor, the less heat escapes through the window. R-values are also used in insulation, and you want a higher R-value on your windows and doors. The higher the R-value of a home, the more insulated and efficient it is.

2. Solar Heat Gain Coefficient (SHGC)

window replacementThe SHGC measures how well a window transfers the heat from sunlight. Energy-efficient windows have a lower SHGC. The lower the SHGC, the less heat gets transferred through the window into your home.

3. Low-E

Low-emissivity, or low-E, glass uses a thin, metallic coating to reflect heat back onto its source. Some low-E coatings can even protect your home’s interior from UV rays. This is especially helpful for preventing furnishings and artwork from fading.

To find out which window replacement is right for you, consult a home improvement contractor from Sterling Exteriors. With over 15 years of experience in residential roofing, windows, and doors, they will be able to recommend the right option for your home and budget. To make an appointment, call (513) 685-8055 today. For more information about their services, visit them online.

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