The existing vapor barrier within this Henrico, VA crawl space was failing at protecting the crawl space from moisture rising from the earth. There were holes and tears in many areas, exposing the dirt floor of the crawl space. There were also large puddles in certain spots, and the floor was littered with debris and building materials. Our installers cleared the crawl space of the existing vapor barrier, as well as any debris and trash. A 20-mil 7-layer polyethylene vapor barrier, called CleanSpace, was installed over the dirt floor of the crawl space. This heavy-duty liner is wrapped around all piers, sealed with special vinyl tape, and mechanically fastened over the foundation walls six to eight inches above the outside grade. With this vapor barrier in place, the earth's moisture will find it much more difficult to infiltrate the crawl space and raise the relative humidity.