This system uses venting and sealing to lower radon levels in the home. A P.V.C. pipe is installed that runs from below the basement flooring to above the roof eve, with a fan on the side that draws radon out from underneath the slab. Cracks and openings in the foundation are sealed. If a sump pump is present, a cover will be placed. The radon is vented through the pipe to the outside, where it is quickly disipated safely into the air. For asthetic reasons, the fan can also be installed inside the attic space.
The installation of a sub-slab mitigation system can reduce indoor radon gas levels by 80% to 90%, in some cases up to 99% can be achieved.
After the mitigation system is installed, a post-mitigation test is conducted to ensure that the system is working properly. Our work is guaranteed to test below 4.0 pCi/L concentration.
Activation of a Passive Pipe System:
As newer homes are being constructed, a series of P.V.C. pipes are installed in the basements in areas of known radon. This type of system is called a passive pipe system. After having a test conducted, if the radon levels exceed 4.0 pCi/L, a fan installation is all that is required. This installation is much more cost effective due to labor, parts and simplicity.
The fan used to power the radon reduction system has a warranty of 5 years.
Warranty for the period remaining at the time of sale are transferable to future owners.
Radon-resistant details from EPA