MITIGATION

The Problem

 In the winter hot air escapes through the attic, creating low pressure in the basement. This low pressure turns the basement into a Radon vacuum sucking in Radon rich soil air into the home. Concrete has tiny holes in it left over from water escaping during the drying process. Radon gas is able to travel though these tiny passages into the home. 

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The Solution

Air Soil Depressurization (ASD) prevents Radon from entering the home by reversing the natural flow of Radon rich soil air from the ground into the home. This is the most common type of Radon Mitigation System and is highly effective.  To do this a 5" hole is bored through the concrete slab and a small suction pit is dug beneath the concrete. Next a 4" PVC pipe is cemented into the concrete floor, and routed up above the roofline of the home. A small fan is installed either in the attic or outside and this vents the radon gas out above your roof where it is diluted into the atmosphere. 

 

Below are models showing how radon mitigation system are installed in a typical home.