IECC Fenestration U-Factor Requirements for Orangeburg, SC Homes
Why U-Factor Matters In Real-World Use If you are comparing windows or glass doors, U-factor is the basic thermal number that shows how readily heat escapes or enters through the unit. The lower the U-factor, the better the insulation performance. In Orangeburg, that number is not just a code label, it affects comfort, AC run time, and how hard a system has to work during hot weather. It also covers glazed doors, such as sliding patio doors and some entry door d