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Energy-Efficient Windows: FAQs

If you have been doing some research for your window replacement project, you’ll probably notice that many window experts, contractors and homeowners are partial when it comes to energy-efficient windows. It can be easy to see the advantages of these windows even at first glance. But you probably still have a few questions about them anyway.

Energy-Efficient Windows: FAQs

Window and door replacement company Renewal by Andersen® of Memphis shares the answers to some of the most frequently asked questions about energy-efficient windows.

What Does Low-E Glass Mean?

When you’re shopping for new windows, your contractor will likely ask if you prefer to use low-e glass. Low-E, short for low remittance, is a type of window glass that reduces the transmission of UV rays from the outside to the inside. Apart from that, it is also designed to reduce glare and improve the thermal efficiency of a window. That said, opting for low-e glass could potentially mean lower cooling expenses.

What Are Gas-Filled Windows?

Glass-filled replacement windows are the product of modern window technology, which enables manufacturers to seal an inert gas between window panes and enhance the insulating property of a window. Argon is typically the gas used in this type of window since it is a better insulator than air.

What’s the Difference Between R-Value and U-Value?

R-value is mainly used in wall and ceiling insulation. That said, it is not recommended to refer to the R-value when looking at windows and other fenestration products. U-value is the more appropriate indication for these. Furthermore, lower U-values mean that the windows are more efficient in keeping heat and cold outside.

Looking for alternatives to vinyl replacement windows? You might want to consider the Fibrex® windows offered by Renewal by Andersen of Memphis. Made from a patent material, these energy-efficient windows have been tried and tested to last for many years. Call us at (901) 979-4460 or fill out our contact form to request a free quote.

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Reviews

"Absolutely wonderful experience working with renewal. They kept my wife and I up to date all throughout the process from the initial sales pitch to installation. They were courteous and professional throughout. The installation of 8 windows was completed in one day and the product is fantastic. Immediate difference felt inside the home and its much quieter now too. My wife and I are thrilled at our purchase. The windows are a bit pricey but worth every single penny. Wonderful product from a wonderful company. Will definitely be using them in the future to install the rest of the windows in our home."

Joseph Sipes
Jul 16, 2022

"When I say, superior service I mean just that!! From start to finish I was pleased!! Step 1, Scheduled appointment at the Home show… easy. Step 2, phone call to confirm appointment the next week….easy. Step 3, in home consultation with Keith Billingsley…..Amazing!!!! Step 4, call and cancel all other Window companies and let them know you have chosen the Best company, Anderson Windows!!! My Windows took a couple of months to come which was not a problem. Oooohhh but when installing day came ( a week early) I was lost for words. The installation team was A1 with professionalism and cleanliness!! They didn’t leave a scrap of trash on my property. It was cleaned up both days. I had Ed Tutton and crew. I had a million questions and they answered every one of them and made me feel so assured with the process. A couple of my Windows had wood rotted. They took care of it and fixed it better than when the house was built!!! Two of my Windows came in broken, it was addressed and shown to us and reorder in the same day!! They will be installed later. The Windows are so beautiful I stood in my master bedroom Windows for almost 3 hours just looking out. I hate Window grates…. I have solid glass Windows now❤️❤️! I wish I would have ordered my new front doors from Anderson Windows. So if you are looking to get new Windows you must go with Anderson Windows!!!"

Celeste Ousley
Jul 13, 2022

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