In alt.hvac on Sat, 16 Jul 2005 11:14:42 -0500 "Mike Dobony"
posted:


"George E. Cawthon" wrote in message
...
wrote:
George,
I generally agree with you.
However, I hear from some some researchers that is is often the case
that there are connecting paths up through the house structure.

YFH might want to look at the Building Science Corporation web site.

TB


True, with balloon framing used in old houses. I
would worry more about fires than Radon with such
construction.

Not true with modern house construction.


Holes for water vent, gas furnace and water heater chimneys go from basement
to roof.

Yeah, in another thread I mentioned my forced air heating duct which
goes up my stack to the second. The oil furnace chimney is either in
the stack too or right next to it.

At the level of the first-floor ceiling or second floor floor, there
is a piece of plywood covering the stack, with holes for whatever goes
up there. I don't recall how well fitted the holes were to the duct
etc. Do all houses have the stack closed like this?

When I wanted to run another electric line, and phone lines and
burglar alarm lines, even with my 6 foot drill bit and a 12 inch
extension, it was hard to drill the hole.

Still, I don't think attic ventilation draws from the basement when
their are easier places to draw from, and even if there is radon in
the area, that doesn't mean it gets into the basement. There has to
be a crack in the foundation and in the right place.

Meirman
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