Crawlspace Vapor Barriers

R20WW is designed with outer layers of white high-strength string reinforced polyethylene film. This film is laminated with an additional black layer of molten ethylene. Since the outer layers of the string reinforced poly film contains UV inhibitors, you can expect a comparatively longer outdoor life. In addition to this, the outer white layers reduce the heat build-up and condensation, maintaining a moderate temperature. They also improve the overall dimensional stability.

R8BB and R8WB consist of two sheets of high-strength polyethylene film laminated together with a third layer of molten polyethylene. The white outer layer contains UV inhibitors and thermal stabilizers and the black outer layer(s) contains carbon black to enhance outdoor life. The white outer surface is also designed to reduce heat build up and condensation. It is reinforced with a high strength scrim reinforcement laid in a diagonal pattern spaced 3/8” apart for uniform tear resistance in both machine and transverse directions.