Reduce Radon in Existing Homes

The most effective way to reduce radon levels in your home is to draw the radon out of the ground and vent it outside.  By removing the radon from the ground it does not enter your home where it can build up to dangerous levels.  Most radon mitigation systems have the same components: the area to collect the radon from the ground, a pipe to transport the radon safely through your home, a fan to pull the radon up the pipe and a vent to put the radon outside.

Radon Collection

The most important aspect of a radon mitigation system is the collection of radon before it enters your home.  There are two main types of foundations, those with a concrete floor and those without.

Homes with Concrete Floors

Radon mitigation pipe going through a concrete floor.Concrete floors that are in good condition provide enough resistance to the entry of radon that a suction pit can be used to collect radon under the floor.  The size and location of the suction pit is very important and unique to each home.  Depending on the soil under your home and gaps and cracks in the floor need to be accounted for when designing a radon mitigation system.  In some homes there is not a clear location for a suction point and pressure field extension testing may need to be conducted before a system can be designed and installed.

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Homes without Concrete Floors

A crawlspace with a poly barrier and radon mitigation pipe.Homes that do not have concrete floors need to have a barrier installed to stop the entry of radon into the home.  This is usually done with plastic that is installed air tight over the whole floor.  This air tight barrier will collect radon that can then be removed by the radon mitigation system.

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Transporting radon through your home

Radon Mitigation pipe going though shelving in a garage.The radon mitigation pipe should be gas tight so that no radon escapes the system and into your home.  Thick (schedule 40) PVC pipe should be used to ensure that the system is durable and will last the life of your home.  Thick pipe is also less likely to get damaged.  We use cellcore schedule 40 PVC, which has small gas bubbles put into the pipe during manufacture so that you have a quiet and durable system.

Learn more about pipe routing

Drawing radon through the system

A radon fan in the attic, connected to a radon mitigation system.There are multiple sizes of radon fans that are designed to draw radon up the pipe.  Selecting the right size fan is important because larger fans cost more money to run and smaller fans may not offer the best reduction in radon.  We use RadonAway fans because they are designed specifically for radon mitigation, the have sealed bearings in the motor for extended durability and they offer the most effective radon reduction for the amount of electricity used.  We use licensed and insured electricians to install the electrical outlet required for you fan.  This is not only required by law but it ensures that there are no complications during installation.

Venting radon out of your home

Radon mitigation vent pipe on top a roof. The pipe exiting your home should be at least 10 feet from any opening in your home that may allow radon to re-enter your home.  The pipes that leave your home will look just like the plumbing vents that you already have in your home.  The pipe will be either white or black depending on the color of your current plumbing vents or your personal preference.

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