Dicor or similar lap sealer for small holes or slits. Or Eternabond (or equivalent) tape, Not "as seen on tv" either. Get a real roof repair tape. If not Eternabond of Dicor Diseal, one of the otehrs such as Thermacote or Gorilla Patch & Seal tape.
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC