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ksanchez
Non-vented crawlspaces and radon

I recently read that non-vented crawlspaces are best in a non-dry environment. I am building in Northern Idaho near a lake, and this entire area is radon-rich. I plan to make the new construction as radon-resistent as possible with the recommended gravel foundation layer and vent pipe through the roof, but am wondering if a non-vented crawlspace impacts/negates the accumulation of radon since it will be vented out.

canuk
Re: Non-vented crawlspaces and radon

If I understand this correctly your house will be over a crawl space and not a basement.
In my thinking the radon issue may not be a concern since the crawl space is not part of the living space as a basement would. Besides it's not likely the crawl space would be hermetically sealed preventing any air exchange from occurring.
Having said that .... if you wish to ensure that any radon gas accumulating in the crawl space be vented .... it certainly wouldn't hurt.

Quote:

vent pipe through the roof, but am wondering if a non-vented crawlspace impacts/negates the accumulation of radon since it will be vented out.

Perhaps it's just me that's confused by this ..... the crawlspace would also be vented doing this.

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