Polyethylene sheeting (film) has a big role in offering plastic protection. It is used in construction as vapor retarders, window films, flooring and counter top protection, and even in roofing. Polyethylene sheet can be used to seal off rooms, cover building materials, and be used in lead abatement projects. There are so many variation of the film, each one engineered for its project. The key is to educate yourself of the options so you get the most useful film to make your job easier