De lamination is nearly impossible to correct. A brother in law of mine bought one with that problem and he completely took out the inside wall. The wood framing was rotted very badly. He is a stubborn individual and he spent a couple of years on it and finally came out with a fair looking job. You could still see waves in the outside skin however. He did all the labor himself but he still put a bundle into a coach that was not worth what he paid for it.He even had to replace the roof as where it was anchored was all rotted. It sure did not look that bad when he bought it.