How Well Do You Understand Window Energy Efficiency Terms?

From large expansive double-hung windows to sturdy and reliable casements, energy efficiency continues to have a big role in how consumers choose their replacement window products. If you’ve ever had to replace your windows in the past, it’s likely you’ve come across a lot of technical terms pertaining to the performance standards of different windows.

While you certainly do not have to be an instant window expert, it pays to know a thing or two about energy efficiency. This will help you get the most out of your windows and potentially avoid bad ones pushed by unscrupulous individuals.

What Is Insulating Gas?

Double-pane windows are so named because they consist of two sheets of glass sandwiching a layer of inert insulating gas. The gas layer is only microns thick, but it helps keep heat from penetrating the windows, effectively improving its efficiency and preventing common issues like condensation.

What Is Low-E Glass?

Aside from the insulating gas layer, most modern replacement windows also have a clear coat covering the glass panes. This is known as low-E coating. Low-E stands for low-emissivity, and it helps reduce the solar heat gain through your windows.

What Are R-Values and U-Values?

Both R-values and U-values pertain to insulating ability, but they are used in different parts of a window replacement product. U-values measure how well the glass area is insulated while R-values are used for the frames and other non-glass materials. You’ll also often see R-values used in other insulating materials, such as foam insulation.

Don’t hesitate to ask any questions you might have about replacement windows and energy efficiency from our experts at Renewal by Andersen® of Houston. Give us a call at (281) 547-6177, or fill out our contact form to schedule an in-home consultation and request a free quote replacement windows and doors today. We serve homeowners in Houston and all neighboring communities.