[Greenbuilding] radon question
Clarke Olsen
colsen at fairpoint.net
Mon Apr 2 16:22:43 CDT 2012
A ground floor room tests positive for Radon - not high, but more then nothing.
The floor is 4+" of concrete on 2" ext. styrofoam, on 6 - 8" of gravel.
Big (1/2") joint between foundation and slab is the likely source.
Should I:
a) seal-up the joint with non-shrinking mortar?
b) seal it with expanding foam? With caulk?
c) arrange some form of fat baseboard vent?
Clarke Olsen
373 route 203
Spencertown, NY 12165
USA
518-392-4640
colsen at fairpoint.net
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