Viper® CS II Crawl Space Vapor Barrier
A BETTER WAY TO ENCAPSULATE™
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Co-Extruded
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Tear Resistant
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Odor Free
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Moisture Barrier
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Radon Barrier
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Lifetime Warranty
Made Smart
Viper CS II is a white, co-extruded virgin polyethylene vapor barrier designed specifically to control moisture and soil gas migration in crawl space applications.
Manufactured using a proprietary resin formulation, Viper CS II yields excellent performance characteristics at an economical price point.
Made Tough
The multi-Layer extrusion manufacturing of Viper CS II ensures high puncture, tear strength and maximum moisture protection, exceeding all permeance standards.
Engineered for long-term performance, Viper CS II comes with a lifetime material warranty, providing peace of mind for the life of the structure.
Made for Crawl Spaces
Viper CS II comes in a bright white color giving the crawl space a fresh, clean look while combating the harmful effects of radon, moisture, mold and mildew.
Installing vapor barrier under a house properly is critical for the longevity of high performance encapsulation projects. To promote best practices and professional grade installs, ISI supports a nationwide distribution network and year-round training opportunities.
20-MIL
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Roll Size: 12’ x 100’
Approx. Weight: 97 lbs/MSF
Rolls Per Pallet: 20
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10-MIL
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Roll Sizes: 12’ x 100’
Approx. Weight: 48 lbs/MSF
Rolls Per Pallet: 20
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15-MIL
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Roll Sizes: 12’ x 100’
Approx. Weight: 71 lbs/MSF
Rolls Per Pallet: 2
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8-MIL
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Roll Sizes: 12’ x 100’
Approx. Weight: 39 lbs/MSF
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
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 CS Liner Pins
Viper Crawl Space Liner Pins are the best way to secure vapor barrier materials to masonry walls providing a strong mechanical attachment in concrete block, brick or stone.
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Viper CS Term Bar
Viper CS Term Bar can be installed horizontally to mechanically hold liner and provide a sealant “shelf” or installed vertically as furring strips to create R-value enhancing air space.
Training & Support
Send Us A Message
Contact us to find out how we can provide the best value and service for your next project.