How do you find and seal leaks?
Ok, not that I have the ceiling off I've found the first of what I assume will be many leaks. Some come from the windows, some from the ceiling (presumably poorly sealed rivets?)
How do I go about finding them and when I do, how do I seal them for good?
I'm fortunate, in that must of the construction of the bus is aluminum and stainless which is still in great shape after 35 years, but I still want to stop the water...