Two innovations might keep vapor barriers intact around switches and outlets. The Lessco Air-Vapor Barrier Box is a polyethylene enclosure that is nailed to studs or joists around electrical boxes. The wiring is brought through a small slit made with a utility knife. This slit is caulked and the wall vapor barrier can be taped to the wide flange to ensure tight sealing. One size—61/2x71/2x27/8 inches—accepts up to three ganged boxes. For more information, contact Low Energy Systems Co., 990 Mink Lane, Cambellsport, WI 53010; 414/533-8690. An alternative is to seal the face of the box with a Carecover outlet cover. This is ideal for rehab work. The faceplate has two spring-loaded sliding panels that cover the receptacle and a urethane
