Viper CSX 90 LIFETIME (6′ x 125 & 4′ x 125′)


Viper CSX Radiant Crawl Space Vapor Barrier is designed to enhance the appearance of crawl space encapsulation projects while protecting the space from the harmful effects of moisture infiltration. Viper CSX helps guard against mold, mildew, allergens, fungus and overall degradation of the crawl space.

Composed of a bright white cross-woven skin laminated to a high-density flexible foam core. Viper CSX is a durable membrane for the crawl space, resisting tears from foot traffic and laying flat to give the space a clean, professional grade look.

Key Features:

  • Lifetime Warranty
  • Conforms nicely to piers, columns, and transitions
  • Metalized film creates a “zero-perm” barrier to moisture and gases
  • ASTM tested for additional moisture protection
  • May be used for radiant barrier applications by reversing the foil side inward
  • Lightweight and easy to handle
  • Inorganic and will not support mold growth
  • Cushioned for comfort — great for installers, homeowners, and service technicians
  • Available in multiple configurations

Recommended Uses:

  • Crawl space vapor barrier installations
  • Basement wall vapor barrier/waterproofing prpjects Indoor grow room walls and ceiling

Product ID / Size Chart

  • CSX4125: 4′ x 125′ – White/Foil
  • CSX6125: 6′ x 125′ – White/Foil
  • CSX4125W: 4′ x 125′ – White/White CSX6125W 6′ x 125′ – White/White


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Product Description

Recommended Accessories:

Viper Double Bond Tape, Pins/Fasteners, White Poly Seam Tape, Geo-Cell


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