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Radon Mitigation Systems Details 

Fan Noise  

Your radon mitigation fan will be running twenty four hours a day, seven days a week for as long as you live in the house. The fan is in operation removing your radon gas from your home it will be making a humming noise. The bigger the fan used, the louder the humming noise will be.

Your radon mitigation fan can be located in three different area's. One is outside on the house. Two is in the garage. Three is in the attic.

When the fan is located on the outside of the house. The fan and PVC pipes are mounted very close to the house or right against it.  If the fan  is installed properly, improperly or gets a little out of balance, it may vibrate, transmitting noise into and through the PVC pipes, into the wall and into the house.  You may hear it. If you open your windows, on a quiet evening, you may be able to hear the fan running.

If the fan is in the garage or attic. The fan will be above the drywall ceiling. We mount the fan with plastic straps to reduce the vibration and noise. You will not hear the fan running.

​But if you garage ceiling is open, you will hear the fan operating. The humming noise is less than a bathroom fan or a power vent water heater. On the positive side, you will only hear this in the garage and you will know that the fan is running, greatly reducing your radon gas level in your home.

Best Radon Solutions will come out to your home to help you with your radon mitigation fan placement . Call Gary at 262-745-4764 for help. 

Condensation

 On all radon gas mitigation systems, condensation will form, on and in the PVC pipes. When high humidity is present, you will get condensation on the outside of the PVC pipes. This usually takes place in the garage, attic and outside. This can also happen inside your home. Insulating the PVC pipes greatly reduces the risk of outside pipe condensation.

Condensation will form on the inside of the PVC pipe any time the air temperature is lowwer on the outside pipe than the inside. Inside the PVC pipes air temperature is around 50 degrees. All year long,that air is being drawn from under your basement floor from the suction point through the PVC pipe. Your PVC pipes must be sloped back towards the suction pit to drain the condensation back to the suction pit.

When it is very cold outside, you can get the condensation  to freeze inside your PVC pipes.  If it stays cold long enough, ice forms possibilty blocking off the PVC pipe and preventing the radon gas from leaving your home, increasing your radon gas levels in your home. If that happens, your radon fan will overheat and turn itself off. Once the ice melts the fan will turn itself back on.

Fan Placement

The best fan location is in the attic of you home.  The PVC pipe runs  out the basement through a closet and into the attic and out the roof. The PVC pipe is taking radon gas, other gases and moisture from under the basement floor. PVC pipes running through your home which helps keep the PVC pipe and gases the warmest for the longest period time. 
This system has the least chance of freezing and is the most challenging and expense to install. We install this radon gas mitigation system approximately 5% of the time.

When the fan is located in the  garage. The PVC pipe runs out the basement into the garage and out the roof or side wall depending on the design of your home. Air temperature in the garage is usually warmer than outside but not as warm as the inside of your home. Condensation will form. The moisture has more time to cool down to form condensation and freeze when very cold outside. We install this radon gas mitigation system  approximately 60% of the time.

When the fan  and pipe are  located on the outside of your home. This gives the condensation the best chance to freeze  and block your pipe. This is usually the easiest and least expensive radon reduction system to install. We install this radon mitigation system approximately 35% of the time and usually for home is for sale or due to the design of home.

There are four basic types for radon gas reduction or radon gas mitigation systems.

1. Sub-slab depressurization system (SSD)

A hole is made in the basement in the concrete floor and a suction pit is made. PVC pipe is run from the suction pit  to the location of the fan. The fan  is  applying a vacuum to underneath the concrete floor and radon gas can be  easily collected from beneath the building and is discharged outside.

2. Sump pump pit depressurization system (SPD)

The sump pump cock is used as the suction pit. PVC pipe is run to the location of the fan. The fan is applying a vacuum to the sump pump pit and radon gas can be collected and discharged outside. If you have a high water table in the ground this could be a good option for you. Due to water being in the sump pump cock, more moisture is vented out through the system and the better chance you have of condensation problems and ice blocking the radon gas in very cold weather. This system requires that removable coupling are used on the PVC pipe on the sump pump cover. When the sump pump is worked on or replaced, the removable coupling can be damaged or not sealed properly.

3. Drain tile depressurization system (DTD)

 A hole is made in the basement in the concrete floor and a suction pit is made. The drain tile is uncovered, some openings are put in the drain tile. PVC pipe is run from the suction pit to the location of the fan. A fan is applying a vacuum to the suction pit and drain tile and the radon gas is collected from underneath the building and discharged outside. Sometimes the drain tiles can not be found by the foundation footings and can not be located. When this happens, it becames a sub-slab depressurization system.

4. Sub-membrane depressurization system (SMD)

This system is used when you have a dirt or gravel basement floor. Polyethylene  membrane is placed over the exposed soil or rocks and  over PVC  pipe. PVC pipe is run to the location of the fan. A fan is applying a vacuum  under the membrane and the radon gas is collected and  discharged outside.

 Combinations of the above depressurization systems are used in some homes. If your home has a combination of  foundation; basement, crawlspace, slab-on-grade or hidden footings under the basement floor, you will need more than one draw /suction point and may need more than one type of radon reduction system.

PVC Pipe

The  PVC pipe that we use is foamcore schedule 40. It is made with foam inside the PVC to help insulate it which reduces noise and reduces pipe sweating and condensation. 

U-Tube

On the PVC pipe , usually in the basement or garage. We install a mini u-tube. This u-tube shows you that the fan is running and radon gas mitigation sytem is operating when the red oil is uneven or not level. If it shows Zero pressure on the gauge, it means that the fan is not working properly. There is little or no suction in the pipe to get rid of your radon gas. Power could be off or the PVC pipe could be blocked. Call your Radon Specialists for service or click here.


                 262-745-4764 for Gary

                 262-470-1014 for Michelle

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Radon Specialists                       Just one call away!
Call Gary at 262-745-4764     Delafield                        Call Michelle at 262-470-1014     East Troy
        
Radon mitigation fan in attic.
Outside Radon mitigation system
                      No cover
Radon mitigation fan in garage.
Sub-slab depressurization system. PVC pipe run along wall but come out approximately 1 foot by floor due to footing underneath.  Drain tile depressurization system looks the same as a Sub-slab.
The u-tube shows you the radon mitigation system is operating when the red oil is uneven or not level.
Outside Radon Mitigtion System 
                  with cover

Sub-membrane depressurization system
White 6 ml. membrane in crawlspace
Video showing Radon gas in a cloud chamber on Home page. Video is 3.7 minutes long.