FOR CRAWL SPACES Viper CS is a white, cross-woven polyethylene vapor barrier designed for crawl spaces. Its bright white color will give any crawl space a fresh, clean look while also combating the harmful effects of radon, moisture causing wood rot, mold, mildew, odors and poor indoor air quality. Standard Roll Size: 12' x 200' Standard Configuration: 10-mil *Custom Sizes and Print Available Viper CS II crawl space vapor barrier is manufactured using blown polyolefin film. Viper CS II is designed to control moisture migration in crawl space applciations. Viper CS II has a low perm rating and is engineered with excellent puncture and tear resistance. Standard Roll Size: 14' x 200' Standard Configuration: 10-mil *Custom Sizes Available
