Black spots on rubber roof ???
We have an 09 Bighorn, small black spots on entire roof and slideouts. 5er sits outside, no birds or trees around. I have regularly washed it a few times a year. What causes this and how do I fix it? ...
Forum Discussion
BarneyS wrote:
I could be the white coating is wearing off exposing the black rubber.
Barney
X2. It's not mold it's just the white coating wearing off.
