See the evidence showing the differences and similarities in the 20 mil CleanSpace and 20 Mil SilverBack crawl space vapor barriers...

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 the USA In stock ships next day or sooner Made from virgin polyethylene resi Bright white face and a cream...

12 Mil HSU™ High Strength Utility Compare this product to the Viper(tm) brand barrier.Our HSU is: better priced thicker (12Mil) shorter delivery time This 12 Mil vapor barrier is an excellent vapor barrier for crawl space encapsulation. It is made by laminating three layers together; The HSU does not use polyester threads to reinforce the plastic, but instead gets it’s reinforcement from high density ribbons that are weaved together and then heated to increase its lateral strength. The outside...

This crawl space liner is American Made. It is a string reinforced polyethylene vapor barrier that is white on one side and black on the other. The DiamondBack™ naturally 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 on each roll It is a nominal 8 Mil product just like ALL the other 8 Mil liners on the market today. Made in the USA In stock ships next day or sooner Made from virgin polyethylene resin Bright white...