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
Why is it important to get rid of them? The more you scrub, the more of the wear layer you take off shortening the lifespan of the the roof. Mine gets washed when it rains. I just don't worry about it..
B.O.
B.O.
