Installing Plastic Sheeting Over Insulation

Cut the sheeting with scissors at the end of the wall.

Installing plastic sheeting over insulation.

How to install poly over insulation. The plastic and the insulation will eliminate any moisture problems you have in the crawlspace such as water droplets collecting on the concrete walls. This article will show you how to add 6 mil plastic sheeting on the ground and insulate the walls in your crawlspace. Plastic on the outside.

The humid air is indoors. Move down the wall and staple the sheeting to the studs over the insulation until reaching the end of the wall. If water vapor diffuses or infiltrates into the wall cavity and finds the cool surface moisture problems can occur. Continue preparing adhesive and installing polystyrene sheets in the same manner until you cover the whole surface of the wall.

The cool surface is the sheathing assuming no exterior insulation. We use foil faced rigid insulation to keep the space under the house dry. 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. Soon water pours off the can.

Picture an ice cold can of soda on a sweltering hot day. Install the plastic sheeting only after the insulation wiring and plumbing have been completed. Plastic on the outer surface of a wall in cold weather could cause problems. Continue in the same manner until the bottom row is complete.