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Once cold weather arrives, the quality of property windows has a major impact on interior comfort. Poorly insulated glass contributes to drafts throughout the house. The R-value, or insulating value, of the fixtures affects the R-value of walls where they’re installed. By following this guide to how R-values of windows and walls are related, you’ll be better equipped to find solutions to keep out the cold.   

Why Windows Impact Wall Performance

windowsWhen looking at R-values, the higher the number, the better the insulation quality. Walls typically have values of R-50. This number drops, however, once a window is installed. For example, when an R-3 window is installed on a wall, the value of the whole wall drops to R-15. To keep the wall closer to the R-50 benchmark, it’s important to install windows with high-quality insulation. Fixtures with double- and triple-pane glass, for example, often boast insulation properties of R-5 to R-8, which boosts the whole wall value to R-25 or R-37, respectively.

How You’ll Benefit From Installing Windows With Higher R-Values

Installing a window with a higher R-value will increase an entire wall’s resistance to heat and cold air from the outside. This means the HVAC system won’t have to work as hard to circulate conditioned air throughout your space. Because there is less strain placed on equipment, you can avoid inconvenient, expensive breakdowns while also keeping energy costs low. If you are working on a remodel, installing smaller windows will still let in light but won’t have as much of an impact on wall R-value. If you choose to outfit the space with larger fixtures, investing in windows with higher R-values will save you money on energy. 

 

If you want to upgrade windows to improve property comfort and efficiency, Shepard's Glass is known throughout Flathead County in Montana for its range of high-quality products. Beyond providing window repair and installation services, the team will also share tips to keep your home draft-free. To schedule a service appointment, or inquire about wooden and vinyl windows available in northwest Montana, call (406) 755-4540. You can also visit the company’s website to fill out question forms, and Facebook page to see project photos. 

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