Is Visqueen a Vapor Barrier

Visqueen is a brand of polyethylene plastic sheeting (typically low-density polyethylene) produced by British Polythene Industries Limited. … Visqueen is used as a condensation barrier inside walls when installing HVAC systems. It is also used as a ground cover in the crawl space of home foundations as a vapor barrier.

Can you use visqueen as a Vapour Barrier?

While it is excellent for use in many projects, it is not ideal for any use that requires sustained strength such as a tarp or for use as a vapor/moisture barrier or retarder. People will often do a search for “visqueen vapor retarder”, or fire retardant visqueen” when they may be looking for an engineered plastic.

What is the best material to use for a vapor barrier?

You can make a vapor barrier out of any unbroken surface that’s impermeable to water vapor. Polyethylene plastic is a good material to use, in a thickness between 0.002 and 0.008 inches (0.05 to 0.2 millimeters).