Years ago, when few homes had insulation in their outside walls, no one worried about vapor barriers–there was no need for them. But now homes are better insulated, making it necessary to install a ...

Q: Since the summer of 2006 I have lived in a 1943 cape with cement floor in the basement. During the summer the 3-year-old wood flooring curls up from the moisture that seeps through the floor. The ...

The first mention of vapor barriers protecting exterior walls from moisture appeared in the Architectural Record magazine in 1938. It was based on research by the U.S. Forest Service and the National ...