U-Factor Ratings Explained for Maryland Homeowners
What A U-Factor Rating Means In Practice U-factor is one of the simplest window specs to misunderstand, because the number looks technical even though the idea is pretty straightforward. The lower the U-factor, the better the window insulates. Maryland homes have to handle real seasonal change, so the window choice is about more than curb appeal or price per pane. A homeowner comparing U-factor window ratings Maryland homes should treat U-factor as the thermal b