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What Does U-Factor Mean?
ENERGY STAR® qualified windows are independently tested and certified by testing procedures established by the NFRC (National Fenestration Rating Council.) Included in the five categories of...
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Are You Ready for ENERGY STAR 6.0?
New criteria for ENERGY STAR® rated windows will be in effect for windows manufactured on or after January 1, 2016 in the Northern climate zone. We’re pleased to share the following updates on our new...
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