Window U-Factor and SHGC Explained for Arlington VA Homeowners
What U-Factor And SHGC Actually Tell You About A Window When homeowners compare window brochures, they usually get hit with a mix of labels, coatings, glass packages, and energy claims that blur together fast. U-factor measures how well a window keeps heat from moving through it. SHGC, or solar heat gain coefficient, measures how much of the sun's heat gets through the glass. For Arlington VA homeowners, both ratings matter because the climate asks windows to do