Do radon levels change over time?

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

Radon levels are like cavities—just because you're in the clear once does not mean you'll be in the clear forever.

As the earth and soil under a house changes with time, it can produce higher levels of radon gas. Even more, as your home ages or becomes more airtight, 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 it is recommended to test for radon gas every two years.

Why do radon levels change over time?

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

Seasonal fluctuations also adjust the air pressure within your home which creates a vacuum type effect that pulls radon gas into your home through any possible opening. Additionally, structural changes to the house, such as finishing the basement or adding on a room, can also increase radon levels.

Finally, 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 such appliances include:

  • Clothing dryers
  • Space heaters
  • Fireplaces
  • Ventilation fans
  • Furnaces

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. 

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