Why do Radon Levels in the Home Tend to Fluctuate Seasonally?
This was the question our clients asked us the other day; they had done some research after getting their radon test results and questioned the range of the results over the test period. If you do your own research you’ll discover there isn’t one answer to that question because a variety of factors must be considered. However, one thing that does tend to be true is that radon levels in homes are generally higher when houses are closed, similar to living here in the North East from late October to late April during the heating season. And if you have seasonal allergies and central air conditioning, you can include spring and summer months that our houses are closed up tight; that is about 9 months out of the year!
In addition to the closed house conditions (listed above) creating higher indoor radon levels, we have to consider the “ground conditions” as contributors to indoor radon levels. Look out the window: is the ground wet, snow covered, and/or frozen? Any of those conditions will create a soil seal which will force more radon into your home. This condition has been referred to as “The Blanket Effect". Just as a blanket can trap body heat, covered ground at the exterior of our homes can trap radon gases. Radon, as a soil gas, will follow the path of least resistance. When the ground is sealed, the path of least resistance is going to be through your home!
Testing for radon during the winter makes sense to determine the highest potential levels of radon in homes, and why Tiger Group has joined the EPA to support the "January Is National Radon Action Month" 2016 Campaign. Look for our unique radon message over the next few days designed to better help you understand how you can be affected by Radon.
Having a Professional Radon Test conducted by our Certified Measurement Personnel in your home is the best way to determine your Radon Exposure and January is a great time to test!
