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 ...

Membrane/Sheeting The membrane/sheeting form of vapor barrier is a solid, flexible material designed for building wraps, foundations, and other applications. Rigid Board Rigid board form vapor ...

However, vapor retarders and barriers are not the same ... related flooring problems for the life of the building. Notes: (1) If granular material is subject to future moisture infiltration ...