What problems does the repair shop see with a patch?
I had a quarter sized hole in my pop-up fiberglass roof. It is a pebbled surface. I cleaned the surface, put some eternabond tape over it and have had no issues. Super sticky, in fact it is very hard to remove once down. That was a couple years ago and it is still holding.
HTT: "EscapeII" 2016 Shamrock 23WS (current)
PUP: "Escape" 2010 Rockwood HW 277 (gone)
TV: "Bruce" 2011 Dodge Durango V8 Hemi Crew
Just us gals (me, Sis and our daughters)
Traveled 19520 miles and 209 nights in 7 years and counting