CHECK your seals/caulking yearly

Thanks for the post, it's a great reminder. I have a lung disease and can't tolerate any mold. We had a Class A years ago that the rear tail light allowed some water in. Well behind the lights is nothing buy plywood and of course it grew mold. I remediated as much as I could but we ended up selling - full disclosure to the new owners and price was reflected as such. I never even considered the taillights of all things would need to be resealed periodically and the issue that came about as a result. Now I check every single thing, every bolt, screw, light, seal etc - any penetration into the RV and probably over do it, but it only takes a pin hole to completely ruin an RV for me. Good luck in your fix, sounds daunting.