How Do You Put A Vapor Barrier In A Crawlspace?

In a crawlspace with a dirt floor, a vapor barrier can significantly reduce the moisture in the air by preventing it from rising out of the ground. This, in turn can help prevent mold. It also makes it much easier to move around in the crawlspace when you need to do other work there. Installing a vapor barrier is relatively straightforward, but it is best to have at least two people. Remove any extraneous materials from the crawlspace. Ideally, there should be nothing there but dirt. This will make the work significantly easier, and reduce the chances of damaging the barrier. Use a rake or shovel to level out the dirt. It should be flat, without hills or valleys. Measure the area to be covered as accurately as possible. Cut the plastic to size and roll it up. Carry the roll of plastic into the crawlspace along with a supply of plastic garden spikes. Place the roll along a wall that matches the length of the roll. Begin unrolling the plastic across the crawlspace. Cut the plastic with ...  more