hambonegw t1_iqtkypw wrote on October 3, 2022 at 12:02 AM

You should absolutely follow up with a professional.

However, I’ll saw I had a similar thing happen and it turned out that the volume of sideways rain from tropical storm Mathew had caused to blow into our vent for one of our bathroom fans - and leaked just a bit between the seams where the vent duct met the exterior wall. It happened once 6 years ago and never again.

whosthedoginthisscen t1_iqudsu0 wrote on October 3, 2022 at 3:53 AM

A professional what? We're assuming it's a roof thing, but what if it's a plumbing thing? I assume you need someone to cut apart the ceiling and look around to find the source of the water. I have a similar sitch, except I have a master bathroom above my moldy spot (which is in the garage), and I think it was old caulk that I recently replaced. But I'm not sure who to call to take apart the ceiling, remove the insulation and start poking around to determine if I fixed it with new caulk, or if it's an ongoing issue.