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12 mil crawl Space Liner
  • 12 mil crawl Space Liner
  • 12 Mil Crawl Space Encapsulation
  • Compare crawl space liner
  • Crawl space insulation liner
  • Foundation Pins™
  • Foundation Pins™
  • Crawl Space Foundation Pins™ - FP-100
  • Foundation Seal Tape™
  • Foundation Seal Tape™
  • Waterproof Pro Seam Tape™  - WST-PRO
  • Waterproof Pro Seam Tape™  - WST-PRO
  • White Crawl Space Liner Tape
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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 3 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: $95.76
Price: $72.14
In stock
    Availability: In Stock
    Ships Next Day or Sooner™
    12MGL-75-36
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    Item #: 12MGL-75-36
    Availability: In Stock
    Ships Next Day or Sooner™
    Item # Description/Size Availability Qty Break Price Quantity
    FP-100
    Plastic fasteners to hold the vapor barrier permanently to the foundation wall
    In Stock 1 $19.99 $18.99
    FST-100
    Super tacky moisture gasket for sealing the vapor barrier to the foundation wall. Does not stick to damp foundations and requires FP-100 to work properly.
    In Stock 32+
    $24.99
    WST-PRO
    Made with our proprietary adhesive, this seam tape is waterproof and matches our barriers exactly. The Waterproof Pro Seam Tape™ is the tougher, stronger, and more durable choice for your crawl space encapsulation.
    In Stock 12 - 23
    24+
    $30.99
    $30.99
    CF1-URE
    Premium polyurethane caulk for sealing the vapor barrier to the foundation wall in wet locations
    In Stock 1 $6.20 $5.80
    THR-PRO
    Crawl space moisture meter, reads RH% and air temp
    Sold Out 1 $17.99

    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:

    • 13'4" wide by 75' long / 1000 sq ft
    • 13'4" wide by 50' long / 675 sq ft
    • 6'7.5" wide by 100' long / 675 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 73 Reviews:

    Perfect

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    Everything was perfect👍

    Texas

    Wow

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    This tape is awesome. It is one of the strongest tapes that I have ever used on any project. It is very easy to work with and has excellent adhesion. I highly recommend it.

    Texas

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    This 12 mil vapor barrier is excellent quality and seems extremely durable. I have put down a little over 2000 sq. ft in my crawl space. It is flexible enough to work with, but very strong. It was shipped extremely quickly and came VERY well packaged. I found the price to be completely reasonable. I highly recommend it.

    Port Ewen

    12 Mil Reinforced Vapor Barrier

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    We love the quality and durability of the Guardian 12 Mil reinforced vapor barrier for crawl space applications. It is easy to install and gives us the results we expect.
    I highly recommend this product used in conjunction with the 3" waterproof tape.

    Great company, great vapor barrier

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    I found this product to be amazing. I could not find anywhere to get a vapor barrier and every company wanted several thousand dollars. I was able to complete this 1600sqft project in about 3 days. I found it easy to handle as 1 person and because it was folded in half I was able to crawl out without it getting dirty. Only one seam; very satisfied with end result. PS. this does not have cat urine smell