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Solar Heat Gain in Winter Explained

Today, manufacturers of replacement windows and exterior doors put a lot of emphasis on energy efficiency. In fact, it’s not uncommon to hear that they will often spend considerable funds on researching and developing new ways to make their products even more environmentally friendly. One of the many modern innovations of window and door makers is the use of low-E coatings on their panes.

Here are some clever ways you can take advantage of low-E window pane glazing as well as the seasonal changes in the position of the sun to further improve your home’s efficiency and save a little bit on your heating and cooling costs.

What Is Low-E Glass?

Low-E coating allows sheets of glass to let natural sunlight into your home, leaving the heat outside. You can find its use in many patio doors, replacement windows and other exterior products. Its main advantage is in the savings you get on your air conditioning bill. Renewal by Andersen® of Des Moines uses our own exclusive High-Performance™ Low-E4® that has even better efficiency ratings than other comparable glazings.

Heat Gain in Winter

Depending on your location, the sun rises and sets in pretty much predictable directions. You can take advantage of this consistency by planning out your window and door placement to direct the sun’s heat and light to places you want to heat up during the day. This can help reduce heating costs during the colder months.

Heat Gain in Summer

The opposite is true for the summer months. Use Low-E4 glass on French doors and windows located in areas of your home that get direct heat from the sun during most hours of the day. Doing so can help take a load off your air conditioner and ease up your expenses by a bit.

At Renewal by Andersen of Des Moines, you can get superior and energy-efficient replacement windows all year-round. Give us a call at (515) 209-3000, or fill out our contact form to schedule an in-home design consultation and request a free estimate today. We serve Des Moines, IA.

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"We love our new windows and Nate and Colton were great workers – thanks guys!"

Shannon B. - West Des Moines
May 2014

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