If you want to upgrade your existing window or get a window replacement for better energy efficiency, you have to know how to assess product performance. You should also learn how an energy audit is done so you can ensure that you will be getting only the best replacement for your windows.
Renewal by Andersen® of Connecticut shares some factors that you need to check before you purchase new windows:
Solar Heat Gain Coefficient
SHGC calculates the amount of solar radiation entering your property through your windows. This refers to the absorption and release of solar energy. The best window option to get is one which has low SHGC, around 0.8 or below.
Any window replacement will benefit from a good AL rating. Air leaks occur when there are cracks on or damage to the windows. Low air leakage numbers hover at around 0.30 or less.
U-Factor indicates heat loss rate (U-value). Choose windows with low U-value because of their capacity to resist heat flow and greater insulation. This inhibits heat transfer and stabilizes your heating and cooling for your interior.
A great window is capable of effectively resisting the formation of condensation. Condensation Resistance (CR) can be expressed using a number from 1 to 100. The rating depends on the temperature of the interior surface, which can be 30% or 50% and indoor humidity at 70%, at an outdoor temperature of zero degrees.
At Renewal by Andersen of Connecticut, we can help you invest in an energy-efficient window replacement for your property. We can also clarify more details about window performance and other related information. Call us today at (860) 341-4210 or fill out our contact form to get started. We’re Connecticut window contractors serving all areas of the state.