Our poly sheeting varies in thickness from 2 mils to 6 mils.*Clear Polyethylene Sheeting As seen in the picture above,our clear polyethylene sheeting has milky white transparency to it.Thicknesses of ...

Smart Vapor Retarder vs. 6-mil Poly Sheeting One new-to-us product we incorporated in our Sustainable Retreat is known as a smart vapor retarder.

Also, if you already have ceiling sheathing installed, using foam insulation may provide a sufficient air/vapour barrier to negate the need for 6 MIL poly installation.

Heavy-duty options, like this Husky 6-mil plastic sheeting, provide extra durability to resist tears from sharper rocks or foot traffic.