Hi Folks! Here's my situation. This February, I noticed some bubbling/peeling paint on my ceiling; at that time, I sc****d it all off to reveal a damp spot. The damp spot was approximately 3 feet wide starting from the outer wall, then it narrowed (funneled out) from that point to about a one foot. Now, as to what caused it? We had a tough winter. There was a significant ice damn on the roof in that area, and the gutters were NOT cleaned out. Another possibility, directly under the damp footprint above the ceiling is a radiator. We found out that the radiator's valve was not working properly and the packing nut was also loose. That radiator was super hot and hissing continuously throughout the cold months. When I say it was super hot, I do mean SUPER HOT...steamy, hissing, lots of knocking. Add to that, the room above the damp spot is a bathroom -- so, there is the possibility of plumbing issues to take into account. Anyway, it is now June, and the weather has finally started to warm up. The damp spot has not increased in size at all, the edge of the perimeter has turned dark/brown (not mold) and appears to be drying; however, most of the effected area is cold to the touch and still feels damp. In fact, I have been periodically scraping off white powder/crystals that are appearing on the spot (I heard this was common with old plaster when wet). There is no water dripping and the ceiling does not feel "soft" as it would if it were saturated with water. I took care of the gutter problem and was just waiting for the spot to dry before fixing it...but it has been over 3 months now! Like I said, no water dripping, ceiling is cold to the touch, feels damp...area has not increased in size. Should I just continue to wait this out? Could there be some other problem? If it were a plumbing leak of some sort, wouldn't the situation be getting worse with water eventually dripping from my ceiling by now? I'm kind of stuck on what to do next...any suggestions? It's a 100-year old ceiling, and I would hate to rip any of it up if I don't have to.