Radon Mitigation on Existing Homes
Click here to jump to mitigation in new construction
The process in which radon entry is controlled is referred to as
mitigation. Radon can effectively be controlled and lowered in homes
with elevated methods. Though there are many different ways to mitigate
the house, Active Soil Depressurization (ASD) is the most common and very
The Active Soil Depressurization concept is quite simple. In
the lowest level of the home a penetration is made into the sub-slab.
Soil and/or stone is removed through the cored hole.
A series of pipe is run vertically and exits the conditioned area.
Once entering unconditioned space being the exterior or the attic, a fan
is installed in series with the piping and is exhausted in a safe
manner. (according to the EPA Requirements.
In addition radon entry points will be sealed, and post testing will be
done to ensure that the mitigation system is drawing only the gases
beneath the slab.
An Active Soil Depressurization system is quite affordable. Most
systems are installed from $1100-1600. The ASD will lower radon levels
99.9% of the time.
Radon Mitigation in new Construction
Click here to jump to mitigation in an existing home
Building a new home? Passive mitigation system can be installed quite
inexpensively while under construction. A passive mitigation system
will prepare you to activate (install a fan) inexpensively and
First a hole is cored though the lowest level slab.
Then a series of piping will travel through the stud walls into the
In the attic, space will be made for the fan, and electrical provisions
will be left (optional), and the pipe will exhaust through the roof