Window U-Factor Recommendations for the Tennessee Climate
How U-Factor Affects Comfort Across Tennessee Seasons Among all the numbers on a window label, U-factor is one of the most useful, and one of the easiest to ignore until the house starts feeling drafty. A low U-factor means the window slows heat transfer more effectively, which helps keep conditioned air where it belongs. A window that looks fine on paper can still underperform if it is not matched well to the local climate and the home itself. An experienced wi