Gas and vapor barriers, also known as membranes, consist of materials or structures used to prevent gas and other vapors from penetrating a surface. A prominent use of such barriers is to place them ...

Cover the floor and foundation walls with a plastic vapor barrier, and use a dehumidifier to remove remaining moisture from ...

System III LW is a field installed composite waterproofing and gas vapor barrier that is comprised of a water-based Polymer Modified Asphalt (PMA) membrane applied to ...