Class I is the strongest type of vapor barrier and provides the lowest level of permeability. This includes materials such as ...

In his and others experience, a 15 mil or greater class A vapor retarder is needed if ready-mix trucks, concrete pumps, laser screeds, concrete buggies or pump lines travel across the membrane.

ARDEX Americas introduces ARDEX VR 95 Fast-Track, One-Component Moisture Vapor Retarder, a ready-to-use, one-component, water-based, two-coat system formulated to suppress residual moisture in new ...