However, concrete is not maintenance-free ... pre-formed extrusions and flashings, and air and vapor barriers. Primary chemistries utilized are Silicone, Urethane, Latex, and STPU’s.

True vapor barriers should have a permeance rating ... When heavy equipment such as ready mix trucks, laser screeds or concrete buggies will be operating on the vapor retarder, use a 15 mil ...

Rigid Board Rigid board form vapor barriers are materials that are sold as a rigid board. An example is foam boards that are used for concrete/masonry applications. Other The vapor barrier form is ...