Indoor Radon Levels and the Weather

Indoor Radon Levels and the Weather

Radioactive radon gas is the second leading cause of lung cancer in the United Staes and can pose a serious health risk by breathing it over prolong periods of time. Radon enters a home through common entry points such as cracks or holes in the foundation, fissures, sump pumps and poorly sealed pipes. The radon builds up in the home because it becomes trapped.

Weather conditions can cause more radon to enter a home. High winds can create an overall negative pressure on the home while positive pressure is being exerted in the soil on the windward side resulting in more gas being forced into the home.

Radon is a gas and gases seek to saturate a space with a lower concentration hence the reason it flows from the soil into buildings. When rain or snow cap the crown of the soil, saturated or frozen soil prevents the gas from escaping to the outside.  This forces soil gas to enter the home.

Frequently, higher radon levels can be seen during heating months. This is when the suction placed on the home’s foundation is the greatest.

There may be fluctuations in radon concentrations inside a home depending on the season. It is recommended not to test for radon if extreme weather conditions exist or are expected  such as a heavy rain or snow storm. Wait a few days until the stormy weather is over to obtain the most accurate results!

Test Your Home…Protect Your Family!


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