Inside Mitigation System
Exterior Mitigation System
Passive Systems and New Construction Homes
In most cases passive radon systems are
installed during the construction stage of newly built homes.
All new homes should have a passive radon system. A passive radon system
includes a pipe fitted into the slab prior to the slab being poured. This is
done so the passive piping will have good access to the radon air under the
slab. The pipes required for a radon system can be built into the home and a
small stack on the roof is an excellent alternative to possibly running a stack
on the outside of the home.
(No pictures available at this time)
A 4" hole is cut into the concrete slab. A cavity is created into the soil below. Piping is then
installed into the hole and a mitigation fan is used to draw radon as well as
tougher soil gases from beneath the slab and exhausted safely above the home.
Piping with perforations
is laid on the dirt or gravel inside crawlspace, and a 6 mil plastic sheathing
is placed over the entire crawlspace area. The piping draws the radon from under
Garage and Attic
In some cases it is
possible to run the radon piping up through the house or garage and into the
With slab on grade homes
or walk out basements it may be possible to install a radon system entirely on
the outside. This is a useful method when your basement is finished and you may
not want piping inside your basement area.
Sump pumps, floor cracks,
perimeter cracks and condensation drip points all must be sealed. Furnace drip
line should be fitted with 6" condensate drip tube. A gauge to measure
system performance will be installed.