What Is the SHGC Rating and Why Does It Matter in Orangeburg SC?
What SHGC Measures In Real Terms SHGC means solar heat gain coefficient, a number that shows how much sunlight turns into heat after it crosses the glass. It is shown as a number between 0 and 1. Lower SHGC values reduce heat gain, and higher values allow more of the sun's heat to come through. This is important because a window is not just a hole in the wall with glass in it. They also control how much warmth the sun pumps into a room, especially on bright south-