On 2/9/2013 9:45 AM, -MIKE- wrote:
On 2/9/13 11:34 AM, Larry Blanchard wrote:
I may have mentioned here that we recently moved into a house built in
the '50s. A problem has arisen.

One of the bathrooms has a relatively small shower. My wife likes to
take long hot showers. When she does, a small amount of water, maybe 3
or 4 tablespoons, appears on the floor in one spot.

Doing a little investigating, there is a small "weep hole" at the bottom
and that's where the water is coming from. It appears to me that the
wall must be sweating on the inside as I can find no place in the shower
that water could get into the wall. I'm thinking there would be more
water if there was an actual leak.

Looking around on the web, all the references to sweating seem to refer
to moisture condensing on the outside of walls, not inside a wall.

Has anyone here run into this problem? And fixed it? The only thing I
can think of is more powerful vent fan.

Or am I worrying about nothing? Maybe the amount of water is too little
to cause much harm. OTOH, maybe the other shower walls are also getting
wet inside and they don't, AFAICT, have a weep hole.

Of course my wife doesn't want to believe it's not a leak - she doesn't
want to use the shower in the other bathroom. No, I don't know why
either :-).

Any ideas? Thanks.


Long read, but perhaps worth the time....
http://www.buildingscience.com/docum...vapor-barriers



Having recently paid a goodly sum to remove mold in our attic due to an
improper roof install, I would look into this right away. You might
have mold growing in your walls.