I don't think this will work this time. About 2 1/2 years ago, I totally covered the roof with 3-4 gallons of a rubber substance which was suppose to give me a "new roof." Instead, after about 1 1/2 years it has gotten gooey and now everything is sticking to it (leaves, etc.). So I now probably really need a new roof as I don't think this one can be repaired again. I thought a metal roof would be best as I notice that the highend motorhomes have metal roofs but wanted advice from someone familiar with both rubber and metal roofs.