Here are some pictures of professionally installed radon mitigation systems. The most common radon mitigation technique is called either soil depressurization, or active subslab depressurization (ASD), or subslab suction (SSD). This is by far the most common type of radon reduction system installed today. Generally, a hole is drilled through the basement slab, a cavity is excavated beneath the slab, and 3" or 4" diameter PVC pipe is run up from the slab, out through the basement wall, where it connects to an exterior mounted exhaust fan. From the fan, an exhaust pipe runs up at least 10 feet above ground level, and 10 feet from any windows.

Soil depressurization system: view of typical fan placement.

Soil depressurization system: view of typical fan placement and exhaust on one-story home.

Soil depressurization system: view of fan location & exhaust (behind chimney) on two-story home.

Soil depressurization system: aluminum sump cover with radon exhaust pipe (on left).

Soil depressurization system: fan located in attic and exhaust through roof.

Soil depressurization system: fan location near AC compressor.

Soil Depressurization system:
House exterior - fan close up.

Soil Depressurization system:
House exterior - medium view.

Soil Depressurization system:
House exterior - far view.

Soil depressurization system: despite an open sump, this system worked well and produced 1"wc vacuum.

Soil depressurization system: installed on apartment building.

Soil depressurization system: typical fan placement showing safety disconnect switch.

Soil depressurization system: exterior installation with multiple suction points through foundation wall.

Soil depressurization system:
roof exhaust.

Click here for pictures of radon fans.

Click here for technical drawings of radon mitigation systems.

Radon removal:
the ultimate solution!

All Photos copyright 1997-2005 by .

For more radon mitigation photographs, click on WPB Enterprises
the oldest radon mitigation firm in
Pennsylvania, to see how the PA experts do it.

For further assistance, call Infiltec at (540) 943-2776 from 7AM - 4PM ET or email: Infiltec Factory .