Radon Reduction Services (Mitigation)
| Radon Reduction 3 3 0 - 2 8 9 - 9 9 2 4 |
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Some of the most common types of ASD include the following:
*Sub-Slab Depressurization *Drain Tile Depressurization *Sump Pit Depressurization
*Sub-Membrane Depressurization *Block Wall Depressurization *Perimeter Drain Depressurization
All of these systems operate under the same theory. The system creates a mild suction or vacuum in order to
remove the radon gas from the soil, before it enters the home. The radon is collected into a PVC pipe, and routed so
that the radon is vented safely outside above the roof line.
*Sub-Slab Depressurization *Drain Tile Depressurization *Sump Pit Depressurization
*Sub-Membrane Depressurization *Block Wall Depressurization *Perimeter Drain Depressurization
All of these systems operate under the same theory. The system creates a mild suction or vacuum in order to
remove the radon gas from the soil, before it enters the home. The radon is collected into a PVC pipe, and routed so
that the radon is vented safely outside above the roof line.
The process starts with drilling a 4" to 5" hole through the slab, generally 10"
to 12" from the foundation wall in most basements. This will be where the
system creates its suction. This hole location is called the "suction point".
A small pit will be hand excavated under the slab through this hole creating
an area for excellent vacuum pressure.
PVC pipe will be installed and sealed into the suction point with a strong
silicone type adhesive.
to 12" from the foundation wall in most basements. This will be where the
system creates its suction. This hole location is called the "suction point".
A small pit will be hand excavated under the slab through this hole creating
an area for excellent vacuum pressure.
PVC pipe will be installed and sealed into the suction point with a strong
silicone type adhesive.
A white PVC pipe, usually
4" in diameter, will be
installed into the suction
point. The pipe will be
routed up the basement
wall and through the rim
joist. At that point the pipe
may exit to the outside of
the home, or into the
garage area, or in some
cases through closets or
hidden chase areas.
Most suction pipes are
located in a basement area.
If the home does not have
a basement, it may be
located on a first floor slab
area, or even a crawlspace
area.
4" in diameter, will be
installed into the suction
point. The pipe will be
routed up the basement
wall and through the rim
joist. At that point the pipe
may exit to the outside of
the home, or into the
garage area, or in some
cases through closets or
hidden chase areas.
Most suction pipes are
located in a basement area.
If the home does not have
a basement, it may be
located on a first floor slab
area, or even a crawlspace
area.
This is a typical external type system installed on a single story home.
The suction pipe is routed from the basement to the outside of the
home at ground level.
The fan is the rounded area near the base of the home. It is designed
for radon mitigation and suitable to mount outdoors. The fan is
mounted to the pipe with flexible rubber couplings to help eliminate
vibrations and to make it easier to service. We always use "white"
couplings (not black) for a better appearance.
Notice that the vent opening at the top of the pipe is above the gutter
height of the house. It is required that the vent opening be at least 10
feet off ground level, above the eave, and also certain distances away
from open-able windows.
We take great pride in locating outside mounted systems and will
work with you to find an aesthetically pleasing location.
The suction pipe is routed from the basement to the outside of the
home at ground level.
The fan is the rounded area near the base of the home. It is designed
for radon mitigation and suitable to mount outdoors. The fan is
mounted to the pipe with flexible rubber couplings to help eliminate
vibrations and to make it easier to service. We always use "white"
couplings (not black) for a better appearance.
Notice that the vent opening at the top of the pipe is above the gutter
height of the house. It is required that the vent opening be at least 10
feet off ground level, above the eave, and also certain distances away
from open-able windows.
We take great pride in locating outside mounted systems and will
work with you to find an aesthetically pleasing location.
This photo shows the vent pipe routed through the attached
garage on an internal system. The pipe is all white so it blends
with most garage walls and we make every effort to mount the
pipe as close to the wall as possible.
The pipe is typically schedule 35 S&D PVC, which is very thick
walled pipe, and very durable. There should be no concern for
any type of damage from normal use of the garage area. Noise
will also be very minimal, almost silent.
The red part in the middle of the pipe is the vacuum
manometer. This is a gauge that measures vacuum in the pipe
and serves as a visual monitoring device for the fan. If the
gauge reads "0" then it means the fan has either been
accidentally turned off, or has failed. This is an important part
to the system because you most likely won't "hear" the
system running, and a visual monitor will help you to know that
the system is running.
garage on an internal system. The pipe is all white so it blends
with most garage walls and we make every effort to mount the
pipe as close to the wall as possible.
The pipe is typically schedule 35 S&D PVC, which is very thick
walled pipe, and very durable. There should be no concern for
any type of damage from normal use of the garage area. Noise
will also be very minimal, almost silent.
The red part in the middle of the pipe is the vacuum
manometer. This is a gauge that measures vacuum in the pipe
and serves as a visual monitoring device for the fan. If the
gauge reads "0" then it means the fan has either been
accidentally turned off, or has failed. This is an important part
to the system because you most likely won't "hear" the
system running, and a visual monitor will help you to know that
the system is running.
This is a photo of the vent pipe on the rooftop. It
looks just like some of the existing toilet stacks
on the home and blends in well.
There is an aluminum screen on the end of the
pipe to ensure that no "critters" will enter the pipe.
looks just like some of the existing toilet stacks
on the home and blends in well.
There is an aluminum screen on the end of the
pipe to ensure that no "critters" will enter the pipe.
This is the vacuum
manometer. It's only
function is to provide
a visual indication
that the mitigation
fan is running.
Also pictured are the
required system
labels indicating the
installation date,
contractor, and type
of system.
manometer. It's only
function is to provide
a visual indication
that the mitigation
fan is running.
Also pictured are the
required system
labels indicating the
installation date,
contractor, and type
of system.
Some homes have sump pit drainage systems
and it may be necessary to install a special
sealed cover in order for our mitigation system
to work properly.
It also may be an option to use the sump pit as
our suction point. In this photo we see our
suction pipe connected to the special cover
with a removable rubber fitting.
These covers are removable with basic hand
tools to allow servicing of the sump pump.
and it may be necessary to install a special
sealed cover in order for our mitigation system
to work properly.
It also may be an option to use the sump pit as
our suction point. In this photo we see our
suction pipe connected to the special cover
with a removable rubber fitting.
These covers are removable with basic hand
tools to allow servicing of the sump pump.
SUCTION POINT
ROOF VENT PIPE
3 3 0 - 2 8 9 - 9 9 2 4
| The following photos explain the process of mitigation: |
| | | |
| FOR TECHNICAL INFORMATION REGARDING MITIGATION INSTALLATION PRACTICES, PLEASE REFER TO THE FOLLOWING LINK: OFFICIAL EPA RADON RMS (Radon Mitigation Standards) *Code for installation |
| SUCTION PIPE |
EXTERNAL SYSTEM
| INTERNAL SYSTEM LOCATED INSIDE AN ATTACHED GARAGE |
ATTIC MOUNTED FAN
Here we see the mitigation fan and exhaust pipe mounted in the garage attic
space. You will notice that the fan is hard wired to a shut off switch, which is
used for servicing the fan. You will also notice that the pipe is elevated and
mounted securely to a 2x4.
space. You will notice that the fan is hard wired to a shut off switch, which is
used for servicing the fan. You will also notice that the pipe is elevated and
mounted securely to a 2x4.
VACUUM MANOMETER
| SEALED SUMP COVER WITH A SUCTION PIPE INSTALLED |
SUCTION PIPE