Well......supplier reimbursed me for labor ($1500.00) and I get new EPDM roofing and 5 gallons of glue. RV dealer saw how I installed the roof, even though wrong material, and said they think it will never leak.
I took a hose and poured Katrina amount of water and no leaks. It's parked outside so we can load up to leave and it rained more than it has for months and it's dry. Now that being said, I know it's the leaks you can't see that do the damage. But I did all that I could do. Fortunately it will be stored inside 90% of the time.