IECC Fenestration U-Factor Requirements for Orangeburg, SC Homes
What The U-Factor Actually Measures U-factor is one of the first numbers I look at when a homeowner asks about replacement windows, because it tells you how easily heat moves through the entire fenestration assembly. In practical terms, smaller numbers generally point to better thermal performance. That matters in Orangeburg because homes here have to deal with long cooling seasons, heavy humidity, and plenty of sun on the south and west sides of the house. It a