#TRIPLE PANE WINDOWS R VALUE KEYGEN#
2 Some additional discussion of window comfort and condensation appeared in this November 2015 post on the PHIUS blog. Most types of windows are rated at 1.23 x 1.48 m size. Don’t forget to ask about our limited lifetime warranty. 1 Currently, to get any checkmarks at all, the whole-window installed R-value must be at least 4.5 (IP units), and to be recommended for Zone 5 at least R-7. To learn more about our double-pane windows, or for an estimate on replacement windows for your home, contact a SoftLite dealer near you. SoftLite has been a leading innovator in energy-efficient windows since 1934. Of course, our triple-pane windows provide even better energy-performance ratings. The higher the R-Value, the better the window performs.ĭepending on the operating style and glass package you choose, SoftLite offers double-pane windows with a U-Factor as low as 0.17, a SHGC as low as 0.20, and an R-Value as high as 6.66.
R-Value – the measure of the window’s insulating ability.In the North it is preferable to have a higher SHGC so passive light can come through and in the South, the lower SHGC is more desirable. SHGC – the measure of the amount of heat that enters the building through the glass during the warm months.The lower the U-Factor, or U-Value, the better the window performs. U-Factor – the measure of non-solar heat transfer, or heat that escapes through the window during the winter.But what do they mean? Here is a brief overview of these three important energy efficiency measurements: In fact, our standards for these measurements of energy efficiency routinely exceed government standards for such distinctions as ENERGY STAR® labeling. Now, what about the energy-efficient properties of our double-pane windows? They all achieve low U-Factor and SGHC ratings, and one of the highest R-Values in the industry.
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