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 ...
Viper Double Bond Tape is used to seal overlapping layers of Viper Venom Barrier 20-mil soil gas/vapor barrier. Vapor barriers can’t be used alone in a wall assembly. An air gap along with the barrier is crucial. When warm air passes through walls, the moisture condenses out of it. T...
From what I can tell from a state DNR fax, they recommend placing TWO layers of 4-mil vapor barrier underneath the concrete ramp.I understand the purpose for a vapor barrier inside a stucture but what is the purpose of this on an exterior slab?? Any idea what the DNR is thinking??
The Barrier™under concrete thermal insulation and vapor retarder product family is a high-performance, simple to use and labor saving product for all of your under-slab, under concrete, and radiant floor insulation projects. The Barrier's™ unique core material is an expanded polystyrene (EPS...
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