How To Install Vapor Barrier In Crawl Space

Buy a roll of this.

How to install vapor barrier in crawl space. How to install a crawl space vapor barrier. Polyethylene vapor barrier create good drainage around your home to keep rainwater from flowing in under your house. Cover the dirt crawlspace with a plastic moisture polyethylene vapor barrier.

Cut the sheets to the proper size allowing 12 inches or more along the walls. You may need to use poly caulk if the foundation is very wet. Step 1 purchase a roll of thick plastic.

Put up your new vapor barrier. Cut around piers and along the inside edges of the foundation. In severe cases you can run the plastic up the sides of piers and the foundation and secure it with duct tape or anchor it with a line of soil at the perimeter.

Beginning at one side of the crawl space lay down the plastic over the entire place. A technician may install a vapor barrier in your crawlspace to seal it off from excess humidity and install a dehumidifier. Step 2 create light to see in your dark space.

Step 4 measure. Seal off your leaks. Step 3 examine your crawlspace.

How vapor barriers work one method of controlling crawl space moisture is with a very simple and inexpensive project. Sloping the soil away from. Find any old or new leaks.