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  #1  
Old 9/7/17, 6:47 PM
Eli Gruber Eli Gruber is offline
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Default Radon test placement n crawl space?

We have an unfinished basement with 9 foot ceilings except for under the family room which has a concrete floor about 5 feet higher than the rest of the basement resulting in a raised crawl space of about 4 feet under that one room. Today, the inspector put the radon canister on the edge of the floor of that raised crawl space. Is that a correct place? I thought it cannot be on a floor. Please advise. Thanks!
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  #2  
Old 9/7/17, 7:44 PM
Christopher Currins, CMI Christopher Currins, CMI is offline
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Default Re: Radon test placement n crawl space?

The canister should be at least 20 inches above the floor. And that would be the floor Above the crawlspace, not the crawlspace floor.
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Old 9/7/17, 8:02 PM
Eli Gruber Eli Gruber is offline
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by ccurrins View Post
The canister should be at least 20 inches above the floor. And that would be the floor Above the crawlspace, not the crawlspace floor.
This is what he did. It didn't look right to me.

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  #4  
Old 9/12/17, 10:50 PM
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Dan Bowers, CMI, ACI Dan Bowers, CMI, ACI is online now
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Default Re: Radon test placement n crawl space?

Typically lowest living area OR area that could be readily converted to a living area. The basement might fit that bill ........... the crawl would not.



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  #5  
Old 9/12/17, 11:07 PM
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by dbowers View Post
Typically lowest living area OR area that could be (xxxxxxx) converted to a living area. Most basements fit that bill ........... the crawl would not.
Corrected. Time (readily) is not a factor.



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  #6  
Old 9/13/17, 8:19 AM
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Default Re: Radon test placement n crawl space?

One more question. The canister was not collected for four full days. Is that the correct amount of time?
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  #7  
Old 9/14/17, 8:19 AM
Scott A. Simpson Scott A. Simpson is offline
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Default Re: Radon test placement n crawl space?

Many test kits are designed to be placed (exposed) for 48 to 96 hours. I am not familiar with what type of test kit was used, but it is likely that a four day exposure met the manufactures use parameters.




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  #8  
Old 9/14/17, 11:26 AM
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by ssimpson1 View Post
Many test kits are designed to be placed (exposed) for 48 to 96 hours. I am not familiar with what type of test kit was used, but it is likely that a four day exposure met the manufactures use parameters.
I have used kits from EMSL and RTCI and both conform to a 48 thru 96 hr exposure time. If memory serves, this also conforms to US-EPA standards.



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  #9  
Old 9/14/17, 2:54 PM
Christopher Currins, CMI Christopher Currins, CMI is offline
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Default Re: Radon test placement n crawl space?

Canisters don't fly in my area for radon testing. We only use monitors. Agents don't trust home owners, or other agents, from moving them or taking them outside. Neither do I.
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  #10  
Old 9/14/17, 7:51 PM
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Default Re: Radon test placement n crawl space?

Jeffrey ................

Not sure WHAT you are trying to say.

When we place a radon monitor it typically goes into the lowest living area OR area that could be readily made into a living are (like a 1,000sf unfinished basement).



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  #11  
Old 9/14/17, 8:52 PM
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by dbowers View Post
Jeffrey ................

Not sure WHAT you are trying to say.

When we place a radon monitor it typically goes into the lowest living area OR area that could be readily made into a living are (like a 1,000sf unfinished basement).
Define readily. What is the time limit that differentiates readily from lengthy?



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  #12  
Old 9/14/17, 9:43 PM
Christopher Currins, CMI Christopher Currins, CMI is offline
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by jjonas View Post
Define readily. What is the time limit that differentiates readily from lengthy?
In Illinois the "definition" is if an occupant would spend seven or more hours per week in the basement test there. Sometimes that can be hard to determine. Unless its an old cellar and/or has a dirt floor, no receptacles, etc. I set monitor in basement.

A lady that works at IEMA told me in an unfinished basement if you can roller skate on the floor that is where you test.
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  #13  
Old 9/16/17, 8:51 PM
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Dan Bowers, CMI, ACI Dan Bowers, CMI, ACI is online now
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Default Re: Radon test placement n crawl space?

Jeffrey ..................

No time limit on readily vs lengthy. Weird question

Unfinished 1,000sf basement ...... Maybe they'd like to finish it next month MAYBE next year.

BUT its the lowest area of the house that could readily be finished into living area SO that would be the area tested here.



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  #14  
Old 9/16/17, 10:35 PM
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Default Re: Radon test placement n crawl space?

Quote:
Originally Posted by dbowers View Post
Jeffrey ..................

No time limit on readily vs lengthy. Weird question

Unfinished 1,000sf basement ...... Maybe they'd like to finish it next month MAYBE next year.

BUT its the lowest area of the house that could readily be finished into living area SO that would be the area tested here.
There you go again. You were doing just fine until your last line... What the heck does readily have to do with anything???



Jeffrey R. Jonas
Owatonna, Minnesota



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  #15  
Old 9/17/17, 5:07 PM
Eli Gruber Eli Gruber is offline
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Default Re: Radon test placement n crawl space?

Thanks everyone for the replies. I'm waiting for the test results to come in. If the result is high, I will request another test that is in the open part of the basement and not on the crawl space.
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