What will throw off the results of a radon test?

The most accurate readings can be drawn when a home is under “Closed House Conditions”. This means that keeping the windows closed throughout the test, and not leaving the exterior doors open for extended periods of time other than brief entry and exit.  This will help to ensure the most accurate readings during a test.

Rob Wetterstroem

Owner of American Verified Home Inspections. Rob is a Licensed Inspector, Pest Inspector, and Radon Tester with the state of Ohio. He’s a certified residential thermographer, an ASHI Certified Inspector. An Ohio native, he went to St. Xavier high school and graduated from The Ohio State University. He’s been professionally inspecting homes for over 20 years.