How Do You Install Plastic Vapor Barrier?
Vapor barrier materials are necessary for multiple reasons. The most obvious of these is that they keep moisture out of your home. Excess moisture build-up on exterior walls causes mold, mildew and attracts bugs and rodents. Moisture barrier material stops moisture from accumulating. It also prevents air to flow in and out of your home. Vapor barrier materials also help keep your energy bills in check. Polyethylene sheet plastic in either 4- or 6-millimeter thickness will do the job. Measure the wall area that you plan to cover with vapor barrier plastic using a tape measure. Doing so will help you to know how much plastic to purchase. Buy at least twice as much plastic as your measurements tell you to buy so you will have plenty plastic to cover the walls with one solid piece and to provide for cutting and waste. Open a roll of plastic and unroll it so the plastic will lay flat on the floor or over a large, level surface, such as a table or workbench. Using a utility knife or a sharp
