Installing Plastic Sheeting Over Insulation

If water vapor diffuses or infiltrates into the wall cavity and finds the cool surface moisture problems can occur.

Installing plastic sheeting over insulation.

Install the plastic sheeting only after the insulation wiring and plumbing have been completed. Soon water pours off the can. Cut the sheeting with scissors at the end of the wall. Plastic on the outside.

Stretch the plastic sheet tightly across the top of the wall and staple it to the studs and plates. The colder the contents the more beads of sweat that form on the sides. The humid air is indoors. Go to the second wall and install the sheeting over the insulation just like the previous wall.

Continue preparing adhesive and installing polystyrene sheets in the same manner until you cover the whole surface of the wall. Move down the wall and staple the sheeting to the studs over the insulation until reaching the end of the wall. We use foil faced rigid insulation to keep the space under the house dry. This article will show you how to add 6 mil plastic sheeting on the ground and insulate the walls in your crawlspace.

How to install poly over insulation. Use the pattern described beforehand as to give strength to the insulation layer on one row install the sheets horizontally as on the next one lay them vertically. The cool surface is the sheathing assuming no exterior insulation. Plastic on the outer surface of a wall in cold weather could cause problems.