Legacy, Hilary

Introducing VaporBlock Plus, a resilient underslab barrier designed to restrict radon and methane gases from migrating through concrete slabs. VaporBlock Plus is a seven-layer barrier made from resins with impact strength and resistance to moisture and gas transmission. VaporBlock Plus meets all requirements of ASTM E-1745, Class A, B & C, and is produced under our ISO 9001:2000 certified management system. Raven Industries Inc. 800-635-3456. www.ravenind.com