How Renewal by Andersen® Glass Options Combat UV Rays

March 19th, 2019 by

Send this page

UV rays from the sun don’t just cause sunburns; they can also cause your furniture and other valuables such as artwork and rugs to fade. Fortunately, with high-quality replacement windows, you can avoid this problem.

Good window design can moderate the admission of UV light into your house. In addition to using window treatments, buying ENERGY STAR®-certified fenestration products is key to reducing the negatives of constant exposure to UV rays. Renewal by Andersen® of Portland’s windows fit the bill.

All our High-Performance™ Low-E4® glass packages have exceptional energy-efficiency ratings, but they filter out UV rays differently. 

Low-E4 Glass

Our standard glass option blocks 84% of UV light from entering your home without compromising the amount of natural light that penetrates. It allows 42% of solar heat to enter and has a 0.25 U-factor, which meets the requirements of all U.S. climate zones.

Low-E4 SmartSun™ Glass

This glass solution deflects 95% of UV light. The biggest trade-off is that only 65% of daylight can pass through. But in exchange, choosing this option for your replacement windows reduces solar heat gain to just 28% and improves the insulating quality of the window to a U-factor of 0.24.

Low-E4 Sun Glass

This glass blocks 84% of UV radiation and has a 0.25 U-factor. It limits the entry of natural light to 40%, turning too bright to just right. When it comes to solar heat gain prevention, this glass is the most effective, allowing only 26% of the sun’s infrared light.

All of Renewal by Andersen of Portland’s glass options are excellent in terms of UV protection, but their overall energy efficiency isn’t equal. To pick the most sensible glass package for your replacement windows, call us at (503) 419-3960. You can also schedule your FREE consultation. We serve Tigard, West Linn and Beaverton, OR.