If I had the expertise I would attempt it but sadly I can do electric, motors, plumbing, and other items but when it comes to repairing a roof I just do not have the experience or knowledge. When I reached out to the local RV repair shop they will not repair roofs. They only replace at the 150. a foot price. That attitude is why many people do things they don't want to do to make sure a roof doesn't leak anymore. I am like many that enjoy RV'ing. retired and on fixed income and while I might attempt such a repair with having someone knowledgeable guiding and assisting me as a backup up I would not attempt it on my own with the possibility of destroying a RV.