We have a 2004 keystone tail-gator we just sealed the roof and the next day we have a bulge on the side of the trailer not near the roof kind of in the middle. It was after we towed it to the campsite feels like air idk. What is it and is it a problem!
Even Without seeing it, I’d be about 99% sure it’s delamination. The exterior “skin” has lost its bond to the substrate. Delamination in RVs is very common. Is it a problem - well it’s not a good thing. It could be a minor problem, it could be a serious problem, and it can become worse, a lot worse. I would suggest start reading up on “RV Delamination” and go from there.
