If you took a poll of building envelope and construction forensic experts, it's likely that moisture barriers would be high on the list of most poorly understood products used in wall assemblies.

Question: I am having a house built partially on a slab and on a crawl space. Is it necessary to install a vapor barrier under the concrete, and is this something I can do myself to save some money?

The placement of a water vapor retarder directly below concrete floor slabs on the ground has become common practice for buildings where floor coverings or coatings are to be installed. Such use has ...

Dear James: I am having a house built partially on a slab and on a crawl space. Is it necessary to install a vapor barrier under the concrete, and is this something I can do myself to save some money?