Concrete Vapor Barrier – 10 MilOur Concrete Vapor Barrier is a 10 mil heavy duty durable plastic sheeting engineered from low-density polyethylene. Strong and durable, they will not rip or tear easily. Primarily applications include being used as a vapor barrier beneath concrete in commercial construction applications.Tested by independent test laboratories and far exceeds ASTM 1745 standards.Manufactured in the US and is backed by an ISO 9001:2008 certification.10 Mil Material – Engineered from Polyethylene.Minimum recommended overlay when using multiple rolls is 6″.