Ever see how a cold soda can sweat when it's hot outside? That's humidity at work, and your roof does the same thing. Warm, wet air can cause problems with your roof's cold surface. These problems can...

Ever see how a cold soda can sweat when it's hot outside? That's humidity at work, and your roof does the same thing. Warm, wet air can cause problems with your roof's cold surface. These problems can...