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3 Features of an Energy-Efficient Window

Many homeowners are making the switch to greener window options. If you’re one who’s interested in energy-efficient windows, then you might have asked what makes them such in the first place. Here are some of the features that make them greener than the ordinary windows. 

3 Features of an Energy-Efficient Window

Multiple Glazing

Your traditional window may only have a single-pane glass. This, however, isn’t capable of blocking the sun’s heat and ultraviolet (UV) rays. To protect your indoors from the effects of both, choose windows with at least two panes of glass. Windows equipped with multiple panes perform better in keeping heat transfer at the minimum, blocking a significant amount of UV rays and ensuring your home remains comfortable all-year round.

At Renewal by Andersen® of San Francisco, our High Performance™ Low-E4® window glass has special coatings that help minimize heat transfer. With this, you will find yourself with lower heating and cooling bills while also protecting your furnishings from fading.

Framing Material

Green windows do not only rely on the glass, but also on the frames. There’s not a lot of framing materials that provide great thermal performance better than our Fibrex® frames. This exclusive framing composite is made of 40% reclaimed wood fibers, a greener decision than any other frame. It is also guaranteed to not corrode, rot and warp. You get the durability of wood while having the low maintenance features of vinyl.

Gas Fills

During the manufacturing process, the spaces in between glass panes are filled with inert glass to boost the overall thermal performance of energy-efficient windows. Combine this with our low-emissivity (low-E) glass and our advanced Fibrex material, and you get well-built replacement window units that offer not only UV protection and minimal heat transfer, but also enhanced soundproofing and increased insulation.

A window replacement project is a great way to save on energy consumption and get started with your green living. Let the experienced design consultants and certified installers at Renewal by Andersen of San Francisco help you with this endeavor. Call us now at (510) 263-3210, or fill out our contact form for a free consultation. We serve homeowners in San Francisco and the surrounding areas.


"I wished to have this done long time ago, had I known the benefits of these products provided by Renewal by Andersen"

June 26

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