Polyethylene sheets or commonly known as P.E. Films are widely used in construction industries as water proofing material or permanent weather barrier. These films are normally translucent, and sometimes made opaque with the use of additive.
Thin sheets of polyethylene are usually sold in roll form. The material does not rot, making it resistant to many chemicals. It is not damaged by extreme weather, which makes it a good choice for many kinds of outdoor applications, and the sheets can be reused many times.