Raven Industries VaporBlock Plus
VaporBlock Plus is a resilient under-slab barrier designed to restrict radon and methane gases from migrating through concrete slabs.
VaporBlock Plus is a resilient under-slab barrier designed to restrict radon and methane gases from migrating through concrete slabs. It is a seven-layer barrier made from resins with impact strength and resistance to moisture and gas transmission. It meets all requirements of ASTM E-1745, Class A, B, and C. Raven Industries Inc. 800-635-3456. www.ravenind.com