Back to Home Page RHMM
Next Page
Previous
Page
Why use RHMM for your radon mitigation needs:
A
fully certified person by the National Environmental Health Association
(NEHA) will do
the Mitigation.
EPA standards and procedures will be followed.
We have mitigated all types of homes
Two story homes with finished
and unfinished basements.
Ranch with full finished and unfinished basements,
and crawlspace.
Tri-level homes with partial crawlspace.
New and Old homes.
Typically we obtain results below 1.5 pCi/L after our mitigation is
done.
We work professionally and clean. After the mitigation work is over, apart from a
system that is installed appropriately hidden in your home, there is hardly any tell
tale signal that we worked in your home.
Our systems are always designed to incorporate your wants and needs in them:
We will find the best solution
We will find a solution with the least visible
changes to your home, so you do not have to worry
about loss of value and extra
stress when reselling your home..
Sometimes we will be able to propose a very
economical solution depending on the special
configuration of your home. This
is why we want to personally visit your home to inspect
whether there are such
possibilities that are still consistent with the EPA-standards.
A few
photos with examples of radon mitigation systems can be found on our Home
Page.
Here we show some of the special tools needed to install a radon
mitigation system:
A
water cooled and flushed diamond core drill to core holes of appreciable size. The
water flushing prevents the generation of dust in your house.
Cores drilled
from concrete basement slabs with the diamond core drill:
Most concrete slabs
are four inches thick, but there are exceptions as shown here: 
When we have finished preparing the hole for radon mitigation and the sub
slab depressurization communication test a large diameter PVC pipe is attached via
a perfect match to the hole with the appropriate bushing to prevent air leakage around
the edges. This makes the system low noise and gives it the look as if the system
was built-in during the original construction of the building. In this picture it
can also be recognized how all reachable expansion joints, cracks and grooves in
the entire basement are caulked with a liberal amount of caulk following the EPA
recommendations.
Sometimes
a vertical pipe section will have to be visible in a garage. It is kept close to
the wall and placed where it is hardly noticeable:
Guaranteed
low radon result after mitigation using the SSDC-tests.
Special methods and
instruments during the job help us to ensure a guaranteed low radon concentration
in the end. As and example we show here a special highly sensitive pressure manometer
to perform sub-slab depressurization communication (SSDC) tests to be able to tell
the home owner whether the ventilator system reaches under the entire slab or only
a part of it. As shown in these pictures these tests can be done as soon as the radon
extraction hole is drilled with our core drill and is prepared for the radon mitigation
by using the same in-line ventilator that is eventually used for the radon mitigation.
Some companies use a vacuum cleaner to create the suction power for this test, but
a vacuum cleaner has different characteristics than this ventilator therefore the
result with a vacuum cleaner is not always reliable. Our test using the ventilator
that will be installed has been shown to be reliable indicator.
The appropriate
ventilator is placed in the bushing for the SSDC-tests: 
This sensitive manometer test is part of the SSDC-test that can indicate during the
day of installation whether the house will be mitigated below the action level.
As
an added benefit this allows us to make adjustments to optimize the system during
installation if doubts exist.
In the example shown the level came out low after
performing the EPA 48-hour radon test: The house was mitigated from an original level
of 15.5 to 1.4 pCi/L
Traveling the distance to your home
Most mitigations
can be done in 1 or 2 days. We are completely ready to travel a distance. With a
Cargo Van and Trailer we can handle tools and materials for almost any radon job
within reasonable distance. This allows you to get the radon expertise you need to
solve your radon problem right at your home. We are also committed to communicate
with you by e-mail or phone about any questions you might have about the mitigation
system after the installation was completed.
Back
to Home Page RHMM
Next Page
Previous
Page