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Features of an ENERGY STAR® Replacement Window

Fact: ENERGY STAR® appliances use 20% to 30% less energy than their counterparts. These appliances will cut down on your electric bills and make your home much more comfortable. Renewal by Andersen® of St. Louis presents the features of ENERGY STAR windows and patio doors.

Features of an ENERGY STAR® Replacement Window

U-Factor

This indicates how well heat flows through a window. The lower the U-factor, the more insulation the window will have. In northern climates, a low U-factor and higher Solar Heat Gain Coefficient (SGHC) will lead to an ENERGY STAR rating. This ensures that homes will be well-insulated and enjoy passive solar heat from the windows.

SHGC 

SGHC measures the solar heat that enters through the window. Lower numbers signify less solar heat entering a home. In southern climates, the smallest U-factor rating is a bit higher, but the SGHC is lower. This reduces the amount of solar heat in the home. That’s why it’s so important to get ENERGY STAR-rated windows for your location. You can get quality windows and sliding patio doors from Renewal by Andersen of St. Louis.

AL

The Air Leakage (AL) rating measures the amount of air entering the frame and joints. A lower AL rating means less air flows through the window. After regional energy efficiency ratings, windows also need a rating for air leakage. It’s necessary for an ENERGY STAR-certification. All windows must have an AL rating of less than 0.3 cubic feet of air for each square foot of window space.

Don’t rely on ENERGY STAR labels alone. Some doors and windows are more efficient, durable and worth the investment than others. Work with a window professional like Renewal by Andersen of St. Louis. We will help you get the best windows that will be a long-term investment for your home.

From premier-quality windows to beautiful French doors, Renewal by Andersen of St. Louis offers high-quality products for your comfort. Call us today at (314) 332-2364 for a free estimate. We serve homeowners in and around St Louis, MO.

Reviews

"Renewal was fantastic! They kept you in the loop from ordering to installation. They informed you at every step of the process of what was happening. The installers were kind, courteous, and professional. Everything was cleaned up after the installation. It was as if they hadn't been there except to see your beautiful new windows. I highly recommend them."

Angie Klevorn
Nov 21, 2023

"3rd time using RBA for window replacement. Again, a very positive experience, the windows are great, the installation was done right, the professionalism was apparent from start to finish. Still have existing windows to be replaced and will definitely use RBA again to do it in the future."

Doug Dick
Nov 21, 2023

"Renewal by Andersen was a good experience for us in replacement of our windows. From the initial meeting with the sales representative, Leslie, through the waiting period for manufacturing, and then to the installment process, our experience was excellent! Communication is key for me and we were kept informed and updated as our windows were being ordered and manufactured. Calls to update us on the installation process were welcomed and appreciated. They know how much is too much so they don't pester you with unnecessary contact. We love our new windows!!! Did I say that already??😂 We can tell a major difference in reduced Street noise and also the temperature at our windows. Excellent company, highly recommend!!"

Paula Null
Nov 15, 2023

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