On Nov 27, 6:07�pm, "john"
wrote:
I finally got around to stripping my basement floors in preparation for
hardwood vinyl flooring. I also did this to try my best with filling in the
cracks to reduce my radon levels. My levels last year were around 4.0.. �Now
their around 8.0. � I understand that this may not reduce the levels
significantly, but its my last attempt before calling in the professionals..
I have Radiant Heating so if they were to install a Radon system, they'd
have to do it solely outside.

I took pics of my cracks. �Most of the seem to be around 1/32 of an inch.
The biggest one (and only 1) is 1/16 of an inch. � So they dont seem to be
too big at all. �I was surprised by this. My house was built in 93.. � I was
expecting much bigger cracks. �Could these small cracks really cause these
kinds of Radon levels?

A pic of the was the smallest one which was around 1/32 of an inch.

http://www.world-news-forums.com/basement1.jpg

this was the biggest one around 1/16 of an inch -

http://www.world-news-forums.com/basement2.jpg

There were several other cracks aswell within that range. �From 0 to 1/16 of
an inch.

Im guessing all I should use is Concrete Crack Filler? �That paste type
stuff... Since the cracks dont seem to be big enough for the polyeurothene
caulks ? � Is there a minimum (inch wise) in which polyeurothane caulks
should start being used?

thanks much ,
John

EVER ANY moisture troubles in that basement?

Wood and moisture even just just high humidity are a bad combo. the
time to address this is before putting down a nice floor.