RMS LOGO 2.jpg (89754 bytes)

3 Saber Way

PO Box 8351

Ward Hill, MA 01835


indoor.gif (10579 bytes) APPLICABILITY

Any house with a concrete slab floor on the lowest level (basement or first floor) where the primary Radon source is below the house (virtually all houses with elevated Radon).



A negative pressure field is created below the slab preventing the entry of Radon Gas into the house.



One or more penetrations are made in the slab and a small pit is created beneath each penetration.  PVC duct pipe is connected to the slab penetration(s) and is routed unobtrusively (through closets, plumbing chases, or other unexposed areas) to the suction side of the fan.  PVC pipe is then connected to the pressure side of the fan and routed through the roof using a standard roof flange and waterproof sealant.  The Radon Gas is discharged safely above the roofline.   The PVC vent pipe protrudes slightly above the roof (12") and has the same appearance as a standard plumbing vent pipe.  An electrical outlet is provided for the fan in the attic.

Return to Home          Program Information         FAQ's          Link to EPA Site