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Retesting for Radon - Why one test isn't enough

By
Home Inspector with US Inspect

We would particularly like to remind the thousands of homeowners who have already tested their home that testing once is not enough, especially if the test was a short term test.

January is National Radon Action Month. The purpose of National Radon Action Month is to draw attention to radon as a serious public health issue and, more importantly, to motivate Americans to take action to protect themselves from radon health effects. Radon causes up to 21,000 lung cancer deaths each year. However, because you can’t see or smell radon, people tend to minimize the health effects and ignore the possibility that it might exist in elevated levels in their homes.

Retesting Your Home for RadonDuring this important month, U.S. Inspect would like to encourage all homeowners to take action and test their home for radon. Testing homes for elevated levels of radon is simple and inexpensive. And, if discovered, radon problems can be easily fixed.

What if I already tested my home?

We would particularly like to remind the thousands of homeowners who have already tested their home that testing once is not enough, especially if the test was a short term test. A short term, two-day test gives you an estimate of what the annual average level of radon is in your home, but radon levels in a home change throughout the year. You should repeat the test every few years. You wouldn’t go to the doctor once for a check up would you? Conditions change in homes over time. It is also important to test during different seasons. If your initial test was performed during a heating season (Fall, Winter), you should perform another test during a cooling season (Spring, Summer). Ideally, you should perform a year long test. This will tell you what your annual average radon level is.

What about those homeowners who have a radon reduction system installed in their home?
You should re-test the radon level in your home every two years. Mitigation systems can fail, and their performance can degrade over time. You won’t know unless you test. Personally I’d recommend testing annually. As I mentioned above, testing is easy and inexpensive. Don’t wait. Test this month!

A Note from the Author: This particular post is targeted towards homeowners not necessarily home buyers. I should add that I believe that State requirements and national standards for testing for radon during a real estate transaction are within reason and sufficient. I don't believe that radon and radon testing should bog down or slow a sale unnecessarily--but once a buyer takes occupancy in their new place--I say, it's your life, and your family--it's OK to be picky. Test in a different season and test regularly--it's up to you to maintain your home and to keep your family safe. In this way, the original test gives you your ballpark and allows quick remediation if levels are very high--then you can get more specific with your testing at a later time.

Posted By: U.S. Inspect Blog

Praful Thakkar
LAER Realty Partners - Burlington, MA
Metro Boston Homes For Sale

Radon level changes all the time, so Chrissy, it's a good idea to re-test - but I had a concern from scientist seller and had multiple tests done with different results....didn't work for my buyers, BTW...

Jan 20, 2011 05:45 AM
Chrissy Doremus ~ US Inspect ~
US Inspect - Chantilly, VA
Residential Property Inspections

I think the state required testing is pretty sufficient for a transaction and keeps things within reason. However, once you take occupancy, I'd say it's ok to be more picky :) Get the levels down to the lowest of the low and test often. I think it's good to make sure buyers in particular have the issue in perspective. There's no need for radon to unecessarily bog down or slow down a transaction, but it is a real concern and one that should be taken seriously by homeowners once they move into their new place.

Jan 20, 2011 05:52 AM
Li Read
Sea to Sky Premier Properties (Salt Spring) - Salt Spring Island, BC
Caring expertise...knowledge for you!

A very important alert...thanks for this info.

Jan 20, 2011 05:53 AM
Jim Keilson
Maryland Home Inspection Services, Inc. - Gaithersburg, MD
Specializing in Mold and Radon Gas Testing.

Excellent post Chrissy, I tell the same thing to all my customers as well.  It's a small price to pay for the peace of mind it gives.

Jan 20, 2011 05:55 AM
Ginny Gorman
RI Real Estate Services ~ 401-529-7849~ RI Waterfront Real Estate - North Kingstown, RI
Homes for Sale in Southern RI and beyond

Great post & timely info...i have a system in my house since RI sits on radon rock in most areas...

Jan 21, 2011 01:17 AM
Chris Smith
Re/Max Chay Realty Inc., Brokerage - New Tecumseth, ON
South Simcoe, Caledon, King, Orangeville Real Esta

Great Post Chrissy, this is a topic most people do not even know about.

Jan 21, 2011 06:58 AM