Understanding the U-Value of a Window Assembly


The use of energy-saving windows can help homeowners reach their energy-efficiency goals. While there are various aspects that contribute to a home’s energy efficiency, the windows are one of the most significant. To help you boost energy-efficiency levels through your windows, it helps to understand the U-Value of a window assembly.

Window Assembly

What Exactly is the U-Value?

Windows are rated by both U-Factors and R-Values. Manufacturers use the former to rate the insulative value of windows, while the latter is indicative of the energy efficiency of the insulation installed in other areas of your home. These include the roof, walls and floors.

How Do You Determine the U-Factor?

The U-Factor refers to the overall energy efficiency of the entire window assembly, from the glazing, to the window frame, down to the spacer. The most energy-efficient windows available on the market are those that have a higher U-factor for the entire assembly than that of the center of the glass. Make sure to look into it when choosing energy-saving windows.

U-Factor in Different Climates

As with other components of your home, you’ll need to consider your local climate before choosing which products to buy. Windows with .30 or less are ideal for cold climates while .60 is the ideal number for hot climates. A .35 rating is ideal for northern and central regions that have need for both heating and cooling, however.

Understanding the U-value of a window assembly is essential for quantifying the energy efficiency of your options. Make sure to factor it in when shopping for replacement windows and ask your trusted contractor about these ratings to get the best results.

Jones and Associates provides residential and commercial property owners the best energy-saving windows available today. With us, you’ll get the most value for your money. We proudly serve the areas of Lubbock, Midland and Odessa, TX. Call us now at (806) 686-1380 to get a free, no-obligation quote.

About JeffJones

Jeff & L’Anna Jones opened Jones & Associates in 1987. Their goal was to build a home improvement company that stressed quality and integrity. That plan has been blessed. Since 2007, Jones & Associates has regularly been named as one of “Qualified Remodelers” Top 500 Contractors in the United States. They have had the privilege of working on over 11,000 South Plains Homes. Jeff and L’Anna have three children: Austin, his wife, Kim and their daughter, Ainsley, Linley and Nick, his wife, Chlo and their daughter, Georgia. They are extremely proud of their children and the outstanding adults they have become. Jeff’s interests include racquetball, volleyball, water skiing, hunting and reading. He has played an active role in church and serves on several community boards. Circle us on Google+
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