Originally Posted by Clark Craven
Thanks for your inputs, I guess I'll just clean it a little more frequently and look into investing in a shelter, even though it doesn't sit very often.
Yep. Don't let it get too dirty in the first place.
Also remember the point of cleaning the roof is two fold:
1. To make the roof membrane last longer.
2. To keep black streaks off the sides of the camper.
Once the roof is clean enough to accomplish these objectives, you're done. It doesn't have to look new. And be careful what you use to clean it with. Some things will shorten the life of the roof. Spic n Span and dish detergent are about all you should need.