Ugh, it looks like the flashing around the toilet vent pipe went bad and has been leaking for a while without showing us. Suddenly, we had a flood in the bathroom when the snow melted. further observation, there's mold everywhere and this has been dripping between studs/sheetrock for a long time. I'm looking at patching the roof, the flashing on the pipe, replacing the attic floor, insulation, bathroom ceilings, wet wall on 2 sides, and tracking out the likely years of mold growth inside, probably need studs replaced, and to get to it I need to remove vinyl tubs.... possibly the tile floor...and tracing the mold path.
Ugh, water damage is nasty. We had a pipe freeze up a few years ago, while I was chasing it looking for the frozen spot with the heat gun, I discovered a slow drip that had been there for so long it had a stalactite. It was dripping from the second story bathroom, through an interior wall, all the way to the basement, where it hit a cast iron sewer pipe. The people here before me ran a dehumidifier nonstop down there, and never got rid of the moisture. We don't have that problem now.
Ugh! I had a pinhole leak in a hot water pipe a year and a half ago. What a @*#^%$* nightmare! Having to work on the roof this time of year would just be an extra kick in the junk.
Yeah, the plan is to involve INS on this one. It's too big of a problem not too. I'm just really frustrated that I didn't see it, but how often do you go in your attic crawl space where you don't have a floor down?
Note to self: go up in attic crawlspace this spring. I've NEVER been up there. Thanks for the cautionary tale.