Mine looks the same. Clear coat is lifting from the sun. I dropped by a local body shop in San Jose that works on RV's to get an estimate. 2k for the front of the motor home due to removing the clear bra which pulled paint off with it.
The shop estimater sugessted something different, he told me that they have been painting the top edges with a material similar to pick up bed liner. He said they can color match pretty well. This would not include the strip, just one color the entire length. This would cost 3k.
Cost to repaint as original would be 4k.
He said all brand motor homes have this problem if they live outside. Paint typically fails at about 7 years.
The bed liner paint should last for a life time, depending on your age.
Not sure what I'm going to do, but I am leaning towards the bed liner paint.