How to Do Post Radon Remediation Testing and How To Live in a House With a Radon Remediation System

Checking Your Radon Mitigator's Work

Below is a list of basic installation requirements that your radon mitigator should meet when installing a radon remediation system in your home. It is important to verify with your radon mitigator that the published Radon Mitigation Standards are properly met to ensure that your radon reduction system will be effective.
  • Radon remediation systems must be clearly labeled. This will avoid accidental changes to the system which could disrupt its operation.
  • The exhaust pipe(s) of radon soil suction systems MUST vent above the surface of the roof and be at least 10 feet away from windows, doors, or other openings that could allow the radon to reenter the house.
  • The radon mitigator must NOT locate the radon exhaust fan in or below a livable area. For instance, the radon fan should be installed in an unoccupied attic or outside of the house- definitely NOT in the basement!
  • If installing an exhaust fan outside, the radon mitigator must install a fan that meets local building codes for exterior use.
  • The radon mitigator must make all electrical connections according to local electrical codes.
  • The radon mitigator must install an alarming device to alert you if your active radon remediation system stops working. The warning device must be placed where it can be seen or heard easily. Your radon mitigator should check that the warning device works. Later on, if your monitor shows that the system is not working properly, call the radon mitigator to have it checked.
  • A post radon remediation test should be done within 30 days of system installation, but no sooner than 24 hours after your radon remediation system is operational (fan is on). Your radon mitigator may perform a post-mitigation test to check his work. However, it is highly recommended that you also get an independent follow-up radon test. Conducting the radon test yourself will eliminate any potential conflict of interest. To test the mitigation system's initial effectiveness, you should use a Home Radon Test ST-100 (2-day radon test) on each livable level of your home. Since this initial post radon remediation test is only for 2-7 days, it should be done under closed-house conditions.
  • Make sure your radon mitigator completely explains your radon remediation system, demonstrates how it operates, and explains how to maintain it. Ask for written operating and maintenance instructions and copies of any warranties.

Maintaining Your Radon Remediation System
Similar to a furnace or chimney, your radon remediation system may need some occasional maintenance. Your radon mitigator will explain what needs to be done. You should check your warning device on a regular basis to make sure the system is working correctly. Fans may last for five years or more and may then need to be repaired or replaced. Remember, the radon mitigation fan should NEVER be turned off; it must run continuously for the remediation system to work correctly.

After the initial post radon remediation test, it's a good idea to radon test your house at least once a year to make sure your radon remediation system is working properly to keep you and your family safe. At Home Radon Test, we recommend using the long term model AT-100 alpha track radon detectors. Place one AT-100 radon detector on each livable level of your home. After about 11 months, order new replacement AT-100 radon detectors. When the new radon detectors arrive, mail in the old ones for analysis and put the new ones up for another year of testing. Order an AT-100 radon detector for each floor in your house today.

What if You Remodel Your Home After Your Radon Mitigation System is Installed?
If you decide to remodel your home after you have had a radon remediation system installed (such as converting an unfinished basement area into living space), check with your radon mitigator before you begin work. Also ask your radon mitigator if any of your proposed changes could void any warranties. If you are planning to add a new foundation for an addition, ask your radon mitigator about what measures should be taken to make sure your new addition doesn't have a radon problem. After you remodel, retest all lived-in levels of your home to make sure the construction did not reduce the effectiveness of the radon reduction system.

To get more help choosing the right radon test kits for your home use our Radon Testing Wizard . Or if you know which test you need you can go directly to the order page.

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