Roybuck,
When we purchased our '04 Itasca Horizon 36GD with the 330 CAT over two years ago, I could tell the roof had never been thoroughly cleaned. Well, I knew it was going to be a chore so, I dove into it with both feet. I first washed it with soap and water, and, "barkeepers friend". Now, it came out nice and clean but, what was left on the roof was, globs and globs of silicone and other sealants used by installers for various components on the roof.
It's a tough job to get all that stuff off. I had to actually scrape all of it off with a steel, stiff bladed putty knife. Then came the work. I got my Dewalt polishing machine (the kind that are used for rubbing out paint jobs) and, some cutting compound and went at it. Well, three days later, on and off of course in work time frames, it looks like the pictures below.
Now, most folks would not go through the effort involved to get their roof looking like mine. It's a preference thing. I don't mind. The water, dirt, and even dust just slides right off now. Flies come in for a landing and run right off the runway.;) Now, about once every couple of months, a little rinse, a brief wipe down and, it's spotless. Some might even think I'm a bit "eccentric" for doing that much work on just a "roof". Well, that's ok, it's my roof. I'm not asking anyone to do the same for theirs.
So, to answer your question, yep, some serious wash down with something like Barkeepers Friend, and, if you want good protection, a rub out and, some wax. I've used various auto waxes up there and so far, as I've known for years, most don't last so, it gets waxed about every three months. And no, I will not put any "floor wax" up there.
Scott
