Walls and Roofs
Why Your Walls Get Wet: A 'Building Science Made Easy' Guide to Understanding the Dew Point
...condensing surface. Much like a glass of ice water sitting in the sun on a summer day, the air around the can is warm, but the water only appears when it touches the cold metal surface.
The condensing surface: This is the exact place where moisture turns into water.
In a house, the type of insulation, it's thickness,...