Streaks on the sides coming from rubber roof

Buster747 wrote:
This happens all too frequent and frankly it's a pain. Is there anything I can do to minimize this problem?
Of course, thanks in advance:@

It's always a good idea to let people know what type of roof you have when asking a question. I see some responses here referring to a rubber roof. If this is your coach (2006 American Eagle 43) that you're talking about than it has a fiberglass roof.

When washing the roof, make sure you get under the air conditioning unit as far as you can, take off the roof vent covers and clean everything. As mentioned once, waxing your roof with a good sealant is probably the best solution. Despite what others believe, waxing the roof does not turn your roof into a skating rink. I have waxed many fiberglass roofs and although it does repel water the best, it does not make the roof slippery. Just make sure that the roof is dry before walking around... many roofs have a precaution sticker stating, "roof is slippery when wet". Not because it had ever been waxed, just because like any smooth surface, water makes the surface slippery.