Window U-Factor and SHGC Ratings Explained for Maryland Homeowners
How U-Factor And SHGC Are Read On A Window Label When homeowners start comparing replacement windows, the numbers on the label usually matter more than the sales pitch. U-factor and SHGC are the two ratings that usually matter most in Maryland. That simple split is useful because the two ratings do different jobs. A lot of homeowners focus only on insulation, but that is only half the story. A very low SHGC may be ideal on a sun-exposed family room, but it ca