In order to stop the moisture from entering the home from the underslab area, either the first barrier or the last barrier must be completely impermeable. “You want to have that water vapor transmission rate, or permeability of the material, on the lower end at the first point of interacti...
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 ...
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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(SG), which conform to the specifications of CAN/CSA-A3001 [27], constituted the primary components of the binders. Single-binder concrete comprised 100% GU cement, whereas binary-binder mixtures involved replacement of cement with high contents of FA (40%) or SG (60%).Table 1provides the...