I've never cleaned my roof, other than local cleaning when inspecting/fixing stuff. It's very dirty, I'm not sure why I would care about that. :?
Just last week I was up on a ladder inspecting my roof for needed repairs (it's a 15 year old rubber roof, and in a constant state of needing repair at this point) and I noticed a 1" cut in the rubber close to the edge. I assume it was a tree branch sometime camping recently, I don't really know. I washed the area locally with Windex, and slapped on a small piece of Eternabond (I've got a roll in my garage). I now have one shiny spot on my filthy roof. :B
I have an Adco cover that I'll use in the winter if I know a big storm is coming and I won't be using the trailer for a few weeks (we camp year round), but usually don't put it on. The trailer is only about 1 foot from the side of my house, and it's a complete PITA to put the cover on.
