[RayChez1]

Not sure what the Crescendo has for a roof, but if you have fiber glass like mine has, the best thing to do and it will solve all your problems for ever is to buy a roll of Eterabond tape from Amazon and do your roof. Get the four inch wide tape and just apply it right over the caulking to where the tape cover all the caulking and some. It is about a $130.00 investment, but you will never have to worry about any leaks. Leaks can be a nightmare to locate.