Protecting the crawl space is one of the best maintenance tips for your home. Crawl space is an area that is always vulnerable to damage due to excess moisture and humidity. It is highly important to protect the crawl space by encapsulating it with suitable material. Our 8 mil vapor barrier consists of a White/Black steel-reinforced polyethylene sheet that is one of the best solutions for crawl space encapsulation. The roll consists of two sheets of high-strength polyethylene film laminated together with a third layer of molten polyethylene.