This is the most commonly installed system. A suction is created by a fan that draws radon from beneath the concrete slab and vents the radon outdoors. Piping can run either internal or external depending upon the home’s floor plan.

 Sub-Membrane Depressurization

This system is used in houses with crawl spaces. A suction is created under a plastic sheet placed on exposed soil or rock. The radon gases are then collected and exhausted outdoors. This system is commonly tied to sub-slab depressurization and typically more costly to do.

The suction is applied to the sump or drain tile and draws radon from beneath the building and exhausts it outside using Radon fan, P.V.C. pipe and down spout.