American Quality

We have been in business since 2007 (started in Michigan) and have been creating crawl space encapsulation supplies since 2010. Our focus is creating & producing high quality crawl space vapor barriers, dehumidifiers and water control products that deliver results. We use our years of hands on installation experience to guide our product development.

  1. Products
  2. Vapor Barriers
  3. 12 Mil
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12 Mil

Lab Tested
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GuardianLiner®
12 Mil GuardianLiner® HS
12 Mil Vapor Barrier for the crawl space, GuardianLiner® High Strength
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In Stock
Lab Tested
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GuardianLiner®
12 Mil GuardianLiner® SR
12 Mil Crawl Space Vapor Barrier, GuardianLiner® with added antimicrobial
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Lab Tested
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Rough Soil®
12 Mil GuardianLiner® Rough Soil®
12 Mil Rocky Soil Vapor Barrier, GuardianLiner Rough Soil™
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Best Value
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DiamondBack™
12 Mil DiamondBack™ SR
12 Mil Crawl Space Encapsulation Liner, 1000 square feet, American Made
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Bundle & SAVE
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12 Mil Crawl Space Repair Bundle
2 Rolls 12 Mil Vapor Barrier, 4 Rolls WaterProof Seam Tape™ Pro, 2 Rolls Foundation Seal Tape™, 1 Pack of Foundation Pins™
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