Plastic Sheet Under Concrete Slab

Recently though research has shown that the old traditional layer of 6 mil visqueen polyethylene plastic under the slab is seldom effective for two main reasons.

Plastic sheet under concrete slab. Although it may seem water tight this grade of material allows a lot of water vapor to pass through. Barricade s 6 mil plastic sheeting is a general purpose plastic film for use in a variety of construction gardening and diy applications. This plastic sheet is in direct contact with the concrete as it should be in a rational world. Commonly used under concrete slabs as a vapor barrier and on top of freshly poured slabs as a curing blanket.

Almost everywhere except california that slabs are placed on the ground a plastic sheet a vapor barrier is located directly under the concrete slab and on top of the ground photograph 1. The hdx 20 ft. Finally some contractors in cold climates began installing a continuous horizontal layer of rigid foam insulation under their concrete slabs. Vapor retarders have been used since the 1950s.

Today most experts feel very strongly that engineered films designed specifically for use as vapor retarders should be used as vapor retarders. This heavy duty plastic is commonly used under concrete slabs as a vapor barrier on top of freshly poured slabs as a curing blanket and as a temporary cover for equipment and supplies. This extra heavy duty plastic can be used under concrete slabs as a vapor barrier and on top of freshly poured slabs as a curing blanket. Concrete contractors learned that a layer of poly helps to keep a slab dry because it stops upward vapor diffusion from the soil.

Plastic sheeting is a general purpose plastic film for use in a variety of construction and diy projects. This plastic can be used to cover crawl spaces and as a temporary cover for equipment and supplies. Plastic sheeting is a general purpose plastic film for use in a variety of construction and diy projects.