I made the same repairs to my sons WW. It was leaking at the front cap. It seems when theY built it they cut the EPDM roof corners a bit short. I pulled back the EPDM then replaced all the dry rotted wood rafters in the front part of the roof. After the repairs were made I sealed all the joints with ETERNABOND.
NOTE; I am not responsible for typos, poor grammer or misspelled word !
04 Itasca, Meridian 34H, 330 Cat/2003 CR V Toad
1933 Ford 3 Window,as seen in Bye Bye Birdie
Pvt. E1 Retired, Shadow Hills,Ca.