I recently discovered that water was dripping from the ceiling light fixture in a first floor bathroom. It turned it was due to a toilet leak (faulty wax ring) in a bathroom directly above.
The toilet leak has been fixed, and in fact there was no evidence of water in the upstairs bathroom at all - it must have leaked directly through the floor around the toilet flange/pipe.
I removed the light fixture in the downstairs bathroom that the water was dripping through and discovered a patch of mold. It's only the size of the fixture (about a foot in diameter) and aside from the visible mold there doesn't appear to be significant or visible water damage. The sheetrock is relatively hard and dry, all things considered. This bathroom is otherwise dry and in good shape - I had no idea this mold was lurking behind the fixture.
Here's an image:
Cleaning off the mold on the surface of the ceiling should be pretty simple. But is there anything else I must do to protect myself and my home as a result of this leak?
What about the space between the ceiling and the second floor? What I'm afraid of is what I can't see on the other side of that sheetrock but I don't know if that's something to be concerned with or not. Is it sufficient to clean away the mold, ensure the ceiling is dry and call it done?