We covered our last unit for the 10 years we owned it, and there was absolutely NO damage, and when we sold it, the and paint graphics looked as good as the day we bought it new. Not one iota of paint rubbing or damage. In this high altitude, Colorado Sun, a good cover is a must. I use the ADCO with Tyvek with Wind cover, and love it when the Spring rolls around, the snow melts, the birds come back to Colorado, I can remove the cover and the unit looks brand new.
I have use the ADCO cover since day one on my 1 year old 2015 Winnebago Forza, and appreciate the protection it is giving me from this Sun. Big deal...climb up on the roof, pull the cover up, cover your unit.
If you want your investment to look nice, do what you can to protect it from the elements.
2015 Winnebago Forza 34T
SOLD 2006 Winnebago Voyage 35A (was a GREAT unit)