Basement suction, 4 inch PVC pipe.  Sub-slab depressurization systems require a suction point installed through the concrete floor and piped to a fan located outdoors or in an attic space.

U-tube manometer.  Because the vacuum fans are so quiet, a U-tube manometer is installed somewhere on the suction pipe so the building occupants can see that there is suction and the system is working.

This is a garage exhaust.  Note: Scuttle in the ceiling of the garage.  If the installation is through the garage and there is not access to the attic, a scuttle like this is installed. Garage exhaust is the typical location for the U tube manometer.

Typical fan installation in a house attic or garage attic.

Exhaust pipe was painted black.

This is an exterior mounted radon fan without a fan enclosure. This type of system is no longer installed by Highland Air, Inc. All exterior mounted fans by Highland Air, Inc. are now mounted using fan enclosures or they are the new low profile box style fans. Notice in this picture, the capped pipe through the roof. This is a failed attempt by the builder to make this building “radon ready”. The builder’s pipe is located in an exterior wall making the addition of a radon fan impossible. The pipe was capped by Highland Air, Inc.

This is the new style box fan, mounted on the exterior of the house. This fan is as quiet as the inline style fans, only more compact. A fan enclosure is not needed to reduce the visual impact of this fan. This fan is currently only available in a medium suction / medium flow capacity fan.

This is a side view of the box style fan measuring less than 5.5 inches wide.

This is an exterior mounted fan with a fan enclosure.  This system is neat and is less conspicuous than a fan, mounted directly on PVC pipe.  A fan enclosure which has a transition box for isolating sound, will help minimize fan harmonics from high suction fans depressurizing tight soils.

This is a commercial building with single roof stack.  The stack is only visible from the back side of the building.

This is a typical “finished” basement installation. This is the basement of a church where child daycare is provided during the day and community groups use the facility at night.

This church was successfully mitigated with one suction point in the basement, after identifying the hot-spot.  You can see the black exhaust stack on the right side roof.