Originally Posted by Kaleth2
Thank you for that info. Nice to have a Skoolie neighbor near by
Our bus is a Bluebird FS65. All of the ceiling ribs are hollow and wiring wasn’t run through the ribs. We’ve just got the floor insulated and plywood sheet at this point. Focused on getting all roof work done for solar panels, deck, wiring and making sure it’s all waterproof before we do a whole lot more inside. This last leak in the rib only leaks when there’s a heavy rainstorm. If it were a condensation leak, would’ve we see a more consistent leak that didn’t speed up with the heavier then rain?
I would say you are likely correct in that. The condensation aspect would be more prevalent when it's not raining, but after a cold frosty morning and then the sun pops out and the temps rise quickly. The metal can't keep up with the temp rise and the condensation starts in.
During a heavy rain however, water can be pooling somewhere and then wicking to the point where the leak appears. Just thinking out loud as they say, but is it possible that the sealant has created a pocket that holds a small amount of rain water, then travels along the sealant to the point where the leak appears?