Can I open a window during my radon test?

By
Home Inspector with US Inspect

As beautiful weather sweeps across the nation, many of us are opening the windows to let the fresh air in. But if you, your buyers, or the sellers of your prospective home are conducting a radon test this week, it's not the time to let in a breeze. Did you know that opening windows, even for a short period time, can not only impact the test results, but render the test invalid?

Be Sure Everyone Knows The Facts About Radon Testing Closed-House Requirements

OTHER FREE RESOURCES ON THIS TOPIC: Click Here For More Tips for Surving Radon Testing During Warm Weather Warm Weather Radon Testing Customizeable Handout .

If you are conducting a short term test (less than 4 days), which is typical for a real estate transaction:

  • Close all of your windows on every level and all outside doors at least 12 hours before beginning the test.
  • Throughout the test, "closed house conditions" must be maintained. This means keeping all windows closed for the duration of the test.
  • Keep outside doors closed except for normal momentary entry and exit.
  • Do not operate fans or other machines that bring in air from outside. 
  • Fans that are part of a radon-reduction system or small exhaust fans such as kitchen and bathroom fans operating for only short periods of time may run during the test.
  • Central heating and air conditioning systems are permitted, but wall/window air conditioning units that are set to exchange air are not.
  • Use air conditioning (central/window units on recirculate modes only) and fans to keep cool (excluding whole house fans). Be sure fans are not directed at the test device. Some test devices are very sensitive to air flow.

 

So the short answer to the above question in the title of this post is, "No." But if proper procedures are followed, your test will be brief and you'll be back to enjoying the weather in no time!

Posted By: U.S. Inspect Blog

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  1. Cheryl Ritchie 06/02/2013 05:35 PM
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Topic:
Home Buying
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Tags:
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environmental testing
radon

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Rainmaker
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Fred Griffin, Your Real Estate Broker for Tallahassee, Florida 850-339-4861
Call Fred 850-339-4861
Frederick Griffin, Licensed Real Estate Broker

Good advice.  Many people want to skew the tests.  Follow the instructions and do it right!

June 03, 2013 06:00 AM
Rainmaker
172,541
John F Muscarella
Broker/Owner, Plymouth County / Cape Cod, MA
RIVER FARM PROPERTIES, LLC

It is rather obvious to most people that you need to do a valid and complete test and you should not disturb the area.  But I have had some real winners over the years.   Nice post

June 03, 2013 02:54 AM
Rainmaker
1,000,613
Ginny Lacey Gorman
Homes for Sale in North Kingstown RI and beyond
Phillips Post Road Realty ~ 401-529-7849~ RI Waterfront Real Estate

Chrissy, some homeowners think they can fake the tests but the 'machines' always know...good advice for summer testing & always wondered about central air.

June 03, 2013 03:52 AM
Rainer
142,271
Michael Gendreau
Edina Realty
Edina Realty

greta advice , we don't do a lot of radon testing in Minnesota just for some relocation deals

June 03, 2013 04:18 AM
Rainmaker
1,067,252
Myrl Jeffcoat
Greater Sacramento Real Estate Agent
GreatWest Realty

Excellent informational tips about radon testing, Chrissy! I know there are areas around the nation were radon testing happens more frequently.

June 15, 2013 05:47 PM
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Rainmaker
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Chrissy Doremus ~ US Inspect ~

Residential & Commercial Property Inspections
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