First, EDPM had been used on RV roofs for many years. But with such extensive damage to the roof, even repaired, I would really question the quality of the care and maintenance the RV received during its life. If the previous owner did not maintain the roof and check for leaks, what else did they cut short to save a few bucks.
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Currently FOR SALE Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer