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12 mil crawl Space Liner
  • 12 mil crawl Space Liner
  • 12 Mil Crawl Space Encapsulation
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This crawl space liner has anantimicrobial added to the tan layer to enhance the vapor barriers natural ability to resist mold and mildew. The GuardianLiner™ is available in 5 sizes (see below).

This product is subject to a UPS large package handling fee of $9.28 for the first roll of each vapor barrier kind/size.

For more information on this product visit the GuardianLiner™ Product Page


Retail: $346.14
Price: $86.54
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Availability: In Stock
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12MGL-36-SL
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Item #: 12MGL-36-SL
Availability: In Stock
Ships Next Day or Sooner™

12 Mil GuardianLiner™

Extremely durable, high quality crawl space vapor barrier/liner. This crawl space liner has been a favorite of the professional community since it's introduction.

There are three major components that make this liner an excellent choice for the crawl space environment. First, the white top layer and the tan bottom layer are made from 100% virgin polyethylene resin. This is very important because these layers will last indefinitely. Product performance & longevity are key factors in an investment like this.

The second part is the reinforcement cord in the center. Made from 100% polyester, this 1000 denier cord protect the crawl space liner from tearing.

The third component is the antimicrobial additive. Although virgin polyethylene naturally resists mold and mildew, the antimicrobial additive will give an extra level of protection and piece of mind.

The 12 mil GuardianLiner™ can be directly compared to similar thickness (12 mil) vapor barriers on the market. However, there are some differences:

  • GuardianLiner™ does not have microperfing, tiny holes in the outer layer
  • GuardianLiner™ weighs minimum 64.5 pounds per 1000 sq ft or 64.5 MSF. While competitor's "12 mil" products weigh only 55 MSF, 45 MSF & 38 MSF
  • GuardianLiner™ was engineered for the crawl space environment while most other brands are designed for uses in the oil fields, equipment covers and grain covers.
  • GuardianLiner™ is Made In America

12 Mil = .012 inches

This crawl space vapor barrier/liner comes in the following sizes and ALL ship on an 82" core:

  • 12'" wide by 85' long / 1020 sq ft No Welded Seams
  • 13'4" wide by 50' long / 675 sq ft
  • 6' 7.5" wide by 100' long / 675 sq ft
  • 44" wide by 75' long / 275 sq ft
  • 3' wide by 75' long / 225 sq ft

The 12 Mil GuardianLiner roll size is approximately 86" for all three roll sizes. We take the wider rolls and fold them in half before rolling them on a thick cardboard core. This 12 Mil product will measures 11.5-12 mil (.0115-.012 inches) at the center of the diamond pattern and approximately 16 mil at the string reinforcement.

Expect that these rolls are heavy and may need two people to carry them. Due to its large size, UPS charges a large package handling fee of $9.28 each to deliver to your door.

Overall Customer Rating of 83 Reviews:
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Outstanding

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Very pleased with the outcome of this project...This is a very superior product and the help I got in picking out the product was very very helpful

Michigan

12 Mil Crawl Space Vapor Barrier, GuardianLiner

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The product was better than anticipated. Very durable. I used the Felt 550™ underneath it. So far very satisfied.

Great Product & Service

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Vapor barrier in the house was put in by the builder with 6 mill black plastic 28yrs ago, it was the usual shoddy job done by the builder, Last year noticed water pooling in the front area of the crawlspace, home is built on a sloping hill from front to back, front side crawlspace about 3 ft back side about 5 1/2 ft. Water was coming in from footer and under the footer, dug a french drain inside the crawlspace along the front wall and a sump pit with pump problem fixed. Decided to encapsulate the entire 1,800 ft crawlspace with 12 mill Guardianliner. This product is amazing extremely strong easy to work with, just measured and cut the pieces on the driveway and installed , used the foundation tape which has a excellent bond, I used foam board on all the walls and adhered with a strong water resistant epoxy. Overlapped 1 to 2 ft and tapped with the waterproof seam tape. The job turned out excellent, now understand I'm 64yrs old and had some great help from my college graduate daughter, but it did take about 5 months to complete, included running additional wiring for lightning and french drain and pump plumbing. however the end results looks like a NASA clean room. Humidity level before project was 75 to 80 percent after completion 45 to 50 percent and this is with a Dehumidifier that was made for a basement, it barely runs because the crawlspace is sealed off however still enough air for furnace to run. This company offers the best products made for the job do it right the 1st time and never worry about it again.

12 mill liner

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  • Strong
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  • Tuff to cut
This stuff seams to be of good quality Easy to work with and came in sizes that worked well with the dimensions of my project

Seam delamination

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  • Seam delamination and customer seevice
This product has factory seam in middle of sheet. The first half of roll had quality seam and was a quality product. The second half had seam was delaminated and not a quality seal. I had multiple issues with another order so I did not pursue corrective action after 1st experience. Customer service unacceptable for returns, difficult to work withand they were they were slow to resolve.

REPLY FROM CRAWLSPACEREPAIR.COM- We stand behind our products 1000%, and if there is a defect in a product you purchase we make it right. Often, we will exchange the product with one that is without defect. However, that does not mean you can call us and demand more than what is fair to both parties.