01:43AM | 03/06/04
Member Since: 03/05/04
1 lifetime posts
I noticed a small wet spot on the ceiling of my family room (first floor) this morning. The strange thing is that my family room is underneath my office on the second floor - not a room with plumbing in it. The spot is about 8-10 feet from my washing machine, which is on the second floor and has a dry drip pan, and about 5 feet from an exterior wall.

Any ideas on where I should start trying to figure out where the problem is and how serious it is? Thanks!!


02:37PM | 03/06/04
Member Since: 01/28/03
693 lifetime posts
Unless you have another way to actually 'see' into the joist spaces inside the ceiling, the best way to find out what is leaking and from where is to cut a hole large enough in the ceiling to peer into the joist space then observe while running various water appliances waht is causing the wet spot.

You could have a leaking pipe, an overflowing washer, a leaking toilet, a faulty drain, a leaking shower pan, leaking roof flashing around the vent pipe and many other causes.

Only by testing each possibility and observing which is causing the leak can you

solve the problem.


03:30AM | 01/17/14
I know that this is a very old post, but felt that I had to comment. It might not be a problem with your roof, pipes, or anything like that. Several years ago I had a 4 x 8" 'wet' spot in the ceiling of my living room - and it kept growing larger.

I finally got the nerve to touch it, and my finger went right through the ceiling. Then, one by one wasps starting coming out and filled up the living room (my cats had a blast by the way).

I sealed up the hole with tape & clear contact paper, and called an exterminator, who went up in the attic and sprayed the nest (which was the size of a large loaf of bread) with boric acid to kill them. Their secretions in the nest lead to the wet spot.

I hope this helps someone because I didn't know who to turn to!

David, Moderator

01:23PM | 01/17/14
Member Since: 11/15/13
262 lifetime posts
Hey I am glad you posted a comment. I have never heard of anything like that. That would be a shocker. Something to look out for and consider.
Thanks again
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