Viper CS 10 mils is a high-performance crawl space vapor barrier designed to prevent moisture migration from the soil into the crawl space. It's the under-house shield you can rely on—guarding against mold, mildew, allergens, fungus, radon gas, methane gas, and heat loss caused by damp insulation, plus protecting wood rot and overall crawl-space degradation. Think of it as armor for your crawl space—without the cape.

This barrier is white, triple-ply, extrusion coated, virgin polyethylene membrane.

It is manufactured using woven high-density fibers yielding the highest strength to weight ratio, tensile strength and puncture resistance of any product of its kind.

Key Features & Design

• Thickness: 10 mils
• Color & Construction: White, triple-ply, extrusion coated, virgin polyethylene membrane
• Material & Strength: Manufactured using woven high-density fibers yielding the highest strength to weight ratio, tensile strength and puncture resistance of any product of its kind
• Weight: Weight Approximately 36 lbs per 1,000 ft2
• Purpose: Designed to prevent moisture migration from the soil into the crawl space and guard against mold, mildew, allergens, fungus, radon gas, methane gas, heat loss due to damp insulation, wood rot and overall degradation
• Class: Crawl Space Class A Woven Reinforced Vapor Barrier - Full Range