These homeowners in Chesapeake, Virginia needed help sealing and insulating their crawl space. These pictures show a before and after of installing CleanSpace, a heavy-duty vapor barrier that helps protect the crawl space from moisture rising from the earth. It is wrapped around all crawl space piers and is mechanically fastened 6-8 inches above outside grade. An antimicrobial called UltraFresh is made into the material of this 7-layer polyethylene liner to help protect it from mold and mildew growth.