Viper® II Under-Slab Vapor Barrier
INDUSTRY-LEADING MOISTURE PROTECTION FOR CONCRETE SLABS
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Moisture Barrier
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Radon Barrier
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Puncture Resistant
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Tear Resistant
Vapor Barrier Under Concrete Slab
Viper II below-slab vapor barrier is the first line of defense against damaging water vapor and soil gas threats existing below the concrete slab. Viper II products are multi-layer (co-extruded), virgin polyolefin under-slab vapor barriers/retarders. The virgin resin used to manufacture Viper II contributes to its long-term stability and prevents the material from breaking down when used as a vapor barrier for concrete slabs.
Engineered For Performance
Viper II is engineered with superior resistance against punctures, tears and water vapor. The high puncture resistance and tensile strength greatly reduces potential vapor barrier damage when exposed to rigorous job site conditions. Furthermore, Viper II products have very low water vapor permeance properties, key to preventing water vapor migration. These qualities make it the top choice for creating a vapor barrier under concrete.
Exceeding Industry Standards
All Viper II products are tested and engineered to meet and exceed the Class A, B and C requirements outlined in ASTM E 1745 (Standard Specification for Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs). ASTM E 1745 is the most recognized industry standard for under-slab vapor retarders.
20-MIL CLASS A
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Roll Size: 14’ x 105’
Roll Weight: 142 lbs
Rolls Per Pallet: 20
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15-MIL CLASS A
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Roll Size: 14’ x 140’
Roll Weight: 140 lbs
Rolls Per Pallet: 20
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10-MIL CLASS A
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Roll Size: 14’ x 210’
Roll Weight: 140 lbs
Rolls Per Pallet: 20
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10-MIL CLASS C
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Roll Size: 14’ x 210’
Roll Weight: 140 lbs
Rolls Per Pallet: 20
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8-MIL CLASS A
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Roll Size: 14’ x 210’
Roll Weight: 113 lbs
Rolls Per Pallet: 20
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6-MIL CLASS C
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Roll Size: 14’ x 210’
Roll Weight: 84 lbs
Rolls Per Pallet: 20
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Accessories
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Viper Vapor Tape
Viper Vapor Tape is a white polyethylene coated film with an aggressive adhesive designed for seaming, splicing, sealing, patching and hanging vapor barrier materials.
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Viper Double Bond Tape
Viper Double Bond Tape is a double-sided butyl tape used for “double-locking” seams and as a gasket material between vapor barrier membrane and foundation walls.
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Viper Vapor Patch
Viper Vapor Patch is an all-weather vapor barrier pipe boot/collar and multi-purpose self adhering patch used for seaming, sealing, patching and hanging vapor barrier materials.
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VaporCheck Mastic
VaporCheck Mastic is a single component, trowel grade, polymer modified, water based emulsion designed as a vapor and waterproofing barrier.
Training & Support
Viper Install Instructions
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