Passive Radon
Mitigation Systems

Passive Systems

Passive radon mitigation systems are a recently required option for new construction. They are similar to active systems, but do not include a fan. They operate under the assumption that the radon will naturally vent upwards through the piping, since it is easier that pushing through the concrete floor. If passive radon mitigation does not reduce the radon to the desired levels, a fan can be added to the system later.

Due to Illinois state law, passive radon mitigation systems are only installed during new construction, because it is difficult to test radon before the building is built. Research shows that these systems can reduce radon levels, but about 70% of them still need a fan added to cope with high radon. Adding a fan later is called “activating a system”.



Passive Systems

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Passive Radon Mitigation Systems

Installing a passive system is similar to installing a active system, except no fan or electricity is installed. In new construction, sometimes the concrete floor is poured around the suction point instead of coring a hole. Many of the same regulations apply to passive systems as to active systems.

Passive Radon Systems

DuPage Radon Contractors is experienced in activating passive radon systems. Get in touch with us to schedule a free in-home consultation, and we'll provide you with a bid for installing a fan to activate your passive system.

  • Can’t Install in Existing Home

    Because of the inefficiency of passive systems, state regulation prohibits radon mitigators from installing these systems in existing homes.

  • Required in New Homes

    On June 1, 2013 an Illinois law began requiring new homes to have a passive (or active) system. Prior to that, a few local builders installed systems.

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