SYSTEMS

Slab on Grade

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At least one four to six inch hole is cored (drilled) through the slab. A small pit is hollowed out beneath the hole, and a PVC pipe is inserted. This pipe is routed to a fan that creates a vacuum beneath the slab. The number of suction points depends on the permeability of the soil beneath the slab and the number of footings within the building.

Basement

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This will be similar to a slab on grade installation. At least one four to six inch hole is cored (drilled) through the slab in the basement. A small pit is hollowed out beneath the hole, and a PVC pipe is inserted. This pipe is routed to a fan that creates a vacuum beneath the slab. The number of suction points still depends on the permeability of the soil beneath the slab and the number of footings within the building.

Crawlspace

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A high density polyethylene sheet is laid on the soil. The seams are sealed, and the edges are sealed to the foundation walls. A perforated pipe or drain mat may be placed beneath the plastic. This pipe is typically connected to solid PVC piping and fan, which creates a vacuum beneath the plastic. This effectively collects the radon and exhausts it to a safe location outside.