Viper CS 6.5 mils Crawl Space Class A Woven Reinforced Vapor Barrier - Full Range Shade:Clear The membrane is specifically formulated

The membrane is specifically formulated for long-term weather resistance without the use of either polymeric or liquid plasticizers

It provides excellent protection against the elements and is suitable for use on a variety of roofing surfaces

75 In 22/45 [Shingle Roof]  [Metal Roof] [Tile Roof] 23

R-Value: R-19

Viper CS 6.5 mils Crawl Space Class A Woven Reinforced Vapor Barrier - Full Range Shade:Clear The membrane is specifically formulatedViper CS 6. 5 mils Crawl Space Class A Woven Reinforced Vapor Barrier is a high performance crawl space vapor barrier designed to prevent moisture migration from the soil into the crawl space. It helps guard against mold, mildew, allergens, fungus, radon gas, methane gas, heat loss due to damp insulation, wood rot and overall degradation of the crawl space. It is manufactured using woven high density fibers yielding the highest strength to weight