Do Radon Levels Change Over Time?

Utah Radon Services
July 25, 2017
< 2 min read
radon in the elements chart

So you've tested and found levels below the recommended action levels, are you set for life or do you need to test again? Do radon levels change over time? We are asked about this all the time and the answer is yes. As the earth and soil under a house changes with time, it can produce higher levels of radon gas. Also, as your house ages, the radon that accumulates in the house may increase.

This doesn't mean that every house will eventually have extremely high radon levels, but every house does have the potential of radon levels increasing over time. This is why we recommend testing for radon gas every couple of years as a preventative measure.

So why do radon levels change over time?

There are many reasons that radon levels change over time, such as the age of the home and soil. As your home ages and changes over time, ventilation systems may be altered, cracks may appear in the floor, walls and foundation of the home. All of these present a new way for radon gas to enter into your home.

Other concerns are seasonal fluctuations that create pressure differentials or reduced air pressure within your home compared to outside. This creates a vacuum type effect that pulls radon gas into your home through any possible opening.  Structural changes to the house, ie finishing the basement or adding on a room, can also impact radon levels. Also, the use of certain appliances with exhausts will gradually pull more radon from the soil. This is a slow process but over many years it can make a difference. An example of these include,

  • Clothes Dryer
  • Space Heaters
  • Fireplaces
  • Ventilation Fan
  • Furnace

If you have never tested your home, or you are due for a re test, fill out the form on this page or call us at 801-871-0715 today. Protect your family and loved ones from radon gas exposure by testing for free!

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Draper, Utah 84020
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