This crawl space liner is American Made. It is a string reinforced polyethylene vapor barrier that is white on one side and cream on the back. The GuardianLiner™ has a minimal amount of anti-microbial added to help enhance it’s natural ability to resists mold growth, does not off gas or have any VOC’s. Facts about this product- Roll size 13’4" x 75'- that’s 1000 Sq Ft for each roll Made in...