Last night my second-floor walk-in shower backed up and overflowed while I was in another room waiting for the water to heat up. The water ran along the faux-wood laminate floor to the bedroom doorway, where it apparently started draining through some hidden gap under the doorframe.
By some miracle, there is an air duct in the first-floor ceiling almost directly underneath that doorframe, and (at least most of) the water that leaked from the second floor seems to have run down the duct and dripped to the floor below, rather than pooling on the ceiling.
I caught the flooding and shut off the water relatively quickly, but I think somewhere around a half-gallon of water ended up leaking through to the first floor. Immediately afterward, about an inch of the ceiling around the air boot was wet and soft to the touch. I tried blotting it with a paper towel, and then pointed a fan at it and left the fan running overnight.
Today, there is some of the typical yellow discoloration where the ceiling was wet (not very visible in the photo), but otherwise doesn't appear to be any significant damage. However, I realize there may still be water sitting on/soaking into the top of the ceiling, which could cause long-term damage or mold issues.
If there's a way to remove the duct boot, I imagine it would be easy to look around at the extent of the damage and dry out any remaining moisture. Otherwise I don't think there's anything to be done besides cutting a hole in the ceiling. I have never done ductwork and don't know if this type of boot is removable or how to remove it.
- Is there any practical way to remove the boot without damaging the ceiling?
- If there's no easy way to remove the boot, how likely concerned should I be about moisture in the ceiling? I live in a relatively dry climate, if that matters. Would there be any way to address moisture issues that didn't involve cutting into the ceiling (or the floor of the 2nd-story)?