How is Energy Efficiency Measured?

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Energy Efficiency for Everyone!

I’m sure in your short search for window replacement companies, you’ve heard the phrases like “Energy Star rated” and “U-Factor” thrown around but what do those terms actually mean. Here is some information to simplify your window buying process.

NFRC Labeling Program

The NFRC (National Fenestration Rating Council) is a non-profit organization that rates the energy efficiency of windows, doors, and skylights. Their ratings are universal across all window manufacturers, which means every company’s windows get graded by these standards. Therefore, this label is an easy way for you to compare window efficiency across the board.

U-Factor

U-Factor is the term the NFRC uses to measure how well a window reflects heat back out in the summer and reflects the heat back in during the winter. Or in simpler terms – how comfortable your windows can keep you without touching your thermostat. The higher the number, the less effective the window will be. The lower the number, the more effective the window will be. Simple, right? Sure! But based on your hometown’s climate you may not need the absolute lowest U-Factor for energy savings.

The map displayed above is a breakdown of climates across and their corresponding U-Factors that meet Energy Star standards. Our Old Kentucky Home is located in the North Central area of the United States, which means that any U-Factor of .30 or lower meets the national standards.

How much can it actually save you?

From what we’ve seen, those that replace all the windows in their home with energy-efficient windows can save up to 20% on their energy bills! Over time, the money you save on your energy bill will pay for the windows. Adding energy-efficient windows to your home is one of the best moves any homeowner can make.

If you’re ready to start your home improvement project, you can contact us at any time. We’ll be more than happy to help!

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