How to Use a Radon Gas Detector for a Follow-Up Test

(When Your First Radon Detection Test Was Over 10 pCi/l)

There Are 2 Steps To Radon Gas Detection

Radon detection is usually done in 2 steps or phases. The first step is called a radon detection screening test and the second step is called a radon gas detection follow-up test. The purpose of a follow-up test is to collect more information about your home's radon levels so that you can make an informed decision about the need to fix your home. If you do need to fix your home, the radon mitigation contractor will want to see your radon gas detection follow-up test results. This will help him choose the best repair method. The more radon information or data that you collect with your radon detection follow-up test the better informed you and your radon repair contractor will be.

Use a Short Term Radon Gas Detector Then Fix Your House
Since your screening test was more then 10 pCi/l, we recommend doing a short term follow-up test using the Model ST-100 2 day radon gas detector kits. Although a short term test could last up to 90 days, your high screening test results makes the need for action more urgent. Use the 2 day radon gas detector kits to get the information you need to decide the best way to fix your home.

Keep Doors and Windows Closed During the Radon Detection Test
When doing a short term radon detection follow-up test, it's important to control or stabilize the radon detection test conditions as best as possible by keeping all doors and windows closed during the test period. We call this closed-house test conditions. Normal entry and exit is OK, but you should postpone your radon gas detection follow-up test if you are planning any activities where the doors and windows will be open more than normal.

Test the Same Rooms as Your Radon Detection Screening Test
Your follow-up test should always include the same locations you tested during your radon gas detection screening test. In addition you should always test the footprint of your house. The footprint is the place or places where your home contacts the ground. For example, if you have a basement family room you should test there. If you have a basement and a crawlspace you need to place a radon gas detector in the basement and the room above your crawlspace. Never put a radon gas detector in a crawlspace.

You should only test livable areas of your home. Do not put radon gas detectors in garages, dirt floor basements, root cellars, crawlspaces or the like. An example of a livable area might be a bedroom or a playroom. Also an unfinished basement would be considered livable if children could play there.

Also Put Radon Gas Detectors in Rooms Where You Spend the Most Time
Most people don't spend all of their time in the lower levels of their home. So in addition to testing your house's footprint, you should also put radon gas detectors in other key living areas within your home. These "key living area" tests are called profile measurements because they help give you a better idea of your radon exposure based on the way you live in your home. For instance, you may only spend an hour or two a day in your basement family room, but you might spend 7 or 8 hours a day in your second floor bedroom.

Your HomeRadonTest.Com test kits come with complete placement instructions. But in general, radon gas detector kits should be placed towards an inside wall, out of direct sunlight and away from drafts cased by doors, windows and HVAC ducts. The radon detection kits should be placed on a table or shelf between knee and shoulder height.

Does Your Water Come From a Well?
If your home's water comes from either a private or a public well you should consider a radon detection kit for water. Use the WT-100 water radon detection kit to send us a water sample for analysis.

To get more help choosing the right radon test kits for your home use our Radon Testing Wizard . Or if you know which test you need you can go directly to the order page.



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