A crawl space encapsulation helps to take dirty vented air underneath the house and turn it into clean conditioned air that will be opened to extra storage area. For an encapsulated crawl space the vapor barrier is continued up the foundation wall and sealed (taped) to the floor vapor barrier. All supports, as well as plumbing that comes through the dirt and walls are also sealed. A polyurethane caulk or two sided foundation tape is applied between the foundation wall and the crawl space. A vapor barrier is installed to seal the moisture under the barrier. This customer loved how they now have a crawl space that is clean and dry which is now useful for storage.