In considering the purchase of a pre-owned Winnebago Class C with a fiberglass roof should there be a concern with cracking or separation due to twisting of the body over time?
No problems with the fibreglass skin. Regularly check the sides where the roof skin goes into the extrusion on top of the sidewall. We found the first cracks in the adhesive after about 5 years. It was a fairly simple repair, scrape/clean out old adhesive and then put in the new, its a Manusbond sp?? adhesive caulk. Goes without saying, check all the caulking. Winnebago sealants.