Surface of Fiberglass Travel Trailer
by Robin (Toronto)
Question: Is a raised welt-like line (not a bump), on the outside surface of a fiber glass travel trailer a problem?
Answer: It might be. We suggest you have it diagnosed at an RV service facility that specializes in fiberglass work. Maybe get a couple opinions. Naturally, such a service center will want the business of repairing the problem, but hopefully with a couple opinions, you can get a sense of how serious it is.
The root cause could be water damage, or it could just be a cosmetic defect in the fiberglass. Try to get some input on the source of the problem and best guesses on whether it will get worse.