Jonathan Smegal

Radiant heat transfer occurs between objects of different temperatures, and it always moves from hot to cold. That’s one reason why you feel cold when you stand next to a window...

Makeup air is outside air that replaces air exhausted from inside the building. In most houses, there are several appliances that push or pull air out of the house, including ...

Terms such as “vapor barrier” or “vapor retarder” are familiar to most of us, even though we may not be completely clear on their differences. They describe a material’s vapor...