Poly Sheeting Vapor Barrier - 4 Mil, 20' x 100'

This 4 Mil poly sheeting is a versatile vapor barrier designed to protect building assemblies from moisture and air infiltration. With a 20-foot width and 100-foot length, it provides wide coverage, reducing seams and ensuring faster installation on large projects.

Made from durable polyethylene, the sheeting is flexible, easy to handle, and resists tearing during use. It’s ideal for use behind drywall, under slabs, or in crawl spaces to help prevent condensation, mold, and structural damage.

Perfect for residential, commercial, and renovation applications, this vapor barrier delivers reliable moisture control at an economical cost.