How does a replacement window’s energy efficiency get measured? Knowing this can make all the difference in your purchasing decisions, helping pave the way for a more comfortable and energy-efficient home for you. The National Fenestration Rating Council (NFRC) has set the standard for a window product’s energy performance with these ratings:
The NFRC also measures condensation, but it is an optional rating for manufacturers to include, which is why you may or may not see this rating on the label. This rating determines how well your windows resist condensation, an essential factor to your unit’s longevity and energy performance. There’s also R-value to consider, which measures the insulating properties of a given product.
What’s the Difference Between the ENERGY STAR and NFRC Labels?
The white and blue ENERGY STAR® label indicates a window is energy-efficient. The distinctive black and white NFRC label, on the other hand, shows you why a window is energy-efficient via the numbers on their performance category. This helps you compare between energy-efficient products more easily.
Head on over to Part 3 of this blog series, where we will be discussing the ways you can optimize the energy efficiency of your new windows.
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