Superior Protection Against Water Vapor Diffusion
Stego Wrap 20-Mil Vapor Barrier is used as an under-slab vapor barrier. This Vapor Barrier is developed from the same proprietary blend of prime virgin resins and additives as the popular Stego Wrap 15-Mil barrier, and provides additional protection for crucial projects.
Superior Protection Against Water Vapor Diffusion
Stego Wrap 20-Mil Vapor Barrier is used as an under-slab vapor barrier. This Vapor Barrier is developed from the same proprietary blend of prime virgin resins and additives as the popular Stego Wrap 15-Mil barrier, and provides additional protection for crucial projects.
This advanced multi-layer plastic extrusion blown film vapor barrier provides unrivaled moisture protection in even the most unforgiving conditions, such as intense fluctuating temperatures and humidity, and is frequently used on high-profile projects such as data centers and hospitals.
Its many features include:
Can be used in commercial, residential, and industrial applications
Helps defend against soil gases, including radon and methane
Shields against flooring failures
Exceeds ASTM E1745 Class A, B & C
Toughest barrier available for most sensitive projects
Made in the USA
Stego Wrap 20-Mil Vapor Barrier has an extremely low permeance, which is below current industry standards for products of its kind. With a baseline water vapor permeance rating of 0.0071 perms and puncture resistance exceeding 3,500 grams, this 20-Mil barrier is a true Class A product per ASTM E1745. Stego Wrap 20-Mil is manufactured with only the highest grade of prime, virgin, polyolefin resins which allows this product to greatly resist degradation. Engineered to provide superior strength and durability, never flaking, and resisting tears, snags, punctures, or cracks.
Engineered Performance – Life of the Building Protection
Stego offers the first-of-its-kind warranty for its line of vapor barriers and retarders. The Stego Life of the Building Warranty reinforces its 20+ year track record without a single claim of product failures, making Stego the construction industry leader in below-slab barriers. The warranty matches the unparalleled Stego Installation Support – a FREE SERVICE designed to help achieve an effective installation and add value for project teams.
APPLICABLE STANDARDS American Society for Testing & Materials (ASTM):
ASTM E1745: Standard Specification for Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs
ASTM F1249: Test Method for Water Vapor Transmission Rate through Plastic Film and Sheeting using a Modulated Infrared Sensor
ASTM D1709: Test Methods for Impact Resistance of Plastic Film by Free-Falling Dart Method
ASTM D882: Test Method for Tensile Properties of Thin Plastic Sheeting
ASTM E154: Standard Test Methods for Water Vapor Retarders used in Contact with Earth under Concrete Slabs, on Walls, or as Ground Cover
Physical Properties:
Water Vapor Permeance: 0.0071 perms
Puncture Resistance: 3,500+ grams
Tensile Strength: 97.7 lbf/in
Thickness: 20-mil
Dimensions: 14′ x 105′ (1,470 ft2)
Roll Weight: 152 lbs
Additional Benefits:
Resists vapor diffusion and moisture intrusion
Exceptional durability
Resists deterioration
Simple, dependable installation
Available nationwide
Life of the Building Warranty
Stego Installation Support
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