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GuardianLiner® is an authentic Crawl Space Encapsulation® Vapor Barrier, perfect for sealing and encapsulating your crawl space.

12 Mil Crawl Space Vapor Barrier

12 Mil GuardianLiner® SR

Our most popular cord reinforced (SR) 12 mil crawl space vapor barrier with an added anti-microbial to enhance its natural ability to prevent mold and mildew growth. Available in several roll sizes that ship anywhere in the USA and Canada.

American Made vapor barrier
Weight- 60 pounds of plastic per 1000 square feet or 60 MSF
Lab Tested for impurities and odor
​Roll Size 36"x75' or 44"x75' or 6'9"x100' or 13'4"x50 or 13'4"x75' 

Manufactures website- https://www.guardianliner.com/

Shop 12 Mil GuardianLiner® Cord Reinforced


12 Mil Crawl Space Vapor Barrier

12 Mil GuardianLiner® HS

The NEW 12 Mil GuardianLiner® HS has 100% of the vapor barrier protected by reinforcement made from strengthened polyethylene. Like all GuardianLiner® brand crawl space vapor barriers the HS also has an added antimicrobial to enhance its natural ability to resist mold and mildew growth.

Weight- 7.8oz per yard
Lab Tested for impurities and odor
Roll Size 36"x85' or 46"x85' or 6'x85' or 12'x50' or 12'x85' 

Manufactures website- https://www.guardianliner.com/

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20 Mil GuardianLiner® SR

Our 20 Mil cord reinforced crawl space vapor barrier is very popular with professionals as it offers higher durability over 12 Mil vapor barriers. This 20 mil vapor barrier matches up to other string reinforced vapor barriers that measure at the thread (20 Mil at thread) instead the plastic(16 Mil at the plastic). 

American Made vapor barrier
Weight- 85 pounds of plastic per 1000 square feet or 85 MSF
Lab Tested for impurities and odor 
Roll Size 13'4"x75'

Manufactures website- https://www.guardianliner.com/

Shop 20 Mil GuardianLiner® Cord Reinforced


12 Mil Crawl Space Vapor Barrier

12 Mil GuardianLiner® Rough Soil®

We matched up our 12 Mil GuardianLiner® and Felt5100™ to make the new 12 Mil GuardianLiner® Rough Soil®. The top is the 12 Mil GuardianLiner® HS and it is bonded by a layer of molten polyethylene to the Felt5100™. This combination is an almost indestructible crawl space liner.

Weight- 13.8 oz per yard.
Lab Tested for impurities and odor
Roll Size 12'x50' 

Manufactures website- https://www.guardianliner.com/

Shop 12 Mil GuardianLiner® Rough Soil®