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Crawl Space Vapor Barrier
Lab Results

All of our crawl space vapor barriers are made of 100% virgin polyethylene. This means all of our crawl space vapor barriers will last a lifetime in the crawl space environment. Everyone of our barriers were designed for use in the crawl space, no unnecessary additives and no odors. We test every one of our crawl space vapor barriers at an independent lab for VOC and odors before we make them available to you. Ask us for the test results...


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20 Mil SilverBack® HS (High Strength) Vapor Barrier crawl space vapor barrier, 20 Mil crawl space vapor barrier, 20 Mil vapor barrier, 20 mil vapor barrier, 20 mil crawl space vapor barrier
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Retail: $175.50
Price: $148.28
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CrawlSpace Repair

NEW Product Technology The SilverBack® HS's technology comes from 60 years of outdoor environmental strength testing and is a premium engineered vapor barrier. With 100% of the surface protected by reinforcement made from strengthened polyethylene ribbons. The puncture and tear strength greatly outmatch even our SilverBack® string reinforced vapor barrier product line. The minimum thickness across the even surface is 20 Mil, but installs like a 12 mil, making it much easier to lay in a crawl...

20 Mil Crawl Space Vapor Barrier, SilverBack™  20 Mil Crawl Space Vapor Barrier, 20 mil crawl space liner, 20 mil plastic barrier, 20 Mil SilverBack
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Retail: $553.07
Price: $364.35
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CrawlSpace Repair Item #: 20MSB -

20 Mil Reinforced Vapor Barrier for Crawl Space Encapsulation The 20 Mil SilverBack™ is made from 100% virgin polyethylene resin and reinforced with a 1000 denier polyester cord. This crawl space vapor barrier is idea for use on the crawl space floor because it is an actual 20 mil. We say it is an actual 20 mil because it is measured at the plastic and not across the raised reinforcement threads like other brands are. This makes the SilverBack™ 20 Mil 30% thicker than the competitors 20 mil....

DiamondBack 12 Mil Vapor Barrier Seamless
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Retail: $344.16
Price: $275.10
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CrawlSpace Repair Item #: 12MDB-85-SL -

12 Mil DiamondBack This American Made 12 mil crawl space liner is a string reinforced vapor barrier that can be compared to most other brands on the open market for the same stated thickness, 12 Mil. Actual 12 mil is equal to .012", not 12mm. This product is a nominal 12 mil, meaning does not measure 12 mil at the plastic, but it is close. This crawl space liner does not contain any additives and is reinforced with a 1000 denier polyester cord to stabilize the layers and prevent tearing....

6 Mil RS Rough Soil™  6 mil RoughSoil™, 6 mil crawl space vapor barrier, 6 mil vapor barrier, 6 mil crawl space liner
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Price: $352.83
Availability: In Stock
Item #: 6MNR-RS -

Available in 12' x 85' rolls 6 Mil and Felt 550™ are attached using molten polyethylene 6 Mil Non-Reinforced -   100% Virgin PolyethyleneBright White Single Layer Felt 550™ -  Protects vapor barrier punctures from sharp objects in the dirt, like gravel and edges of concrete foundationPrevents the vapor barrier from sucking to the mudAllows an air gap between the vapor barrier and the earth to mitigate soil gasses if neededWill wick puddles of water and disperse across the floor...