For my 2006 Jayco, I use Meguires RV/Boat Cleaner & Wax # 50. The items looks like: http://www.autogeek.net/boat-cleaner-wax.html
If my local boating stores don't have any remaining bottles, I use Meguires Auto formula instead. Its details are: http://www.meguiarsdirect.com/detail/MEG+A1216
IMO, RV/Boat or Auto Cleaner / Auto wax works great. Especially using "wax on / wax off" arm movements. Just like on my autos, this is a manual "wax on / wax off" arm movement wax. Meguires dries white in the hard to get corners (white on white trailer cannot be seen) and I do one side each weekend. At end of 3 weeks, my entire 29' TT is done. During fall months before going into winter storage, I apply the wax as usual and let dry. I do NOT wipe it off. It leaves a white film - which gives better protection during winter storage months. In the spring, I re-wax it, and wipe all wax off in the spring. If wondering, I used to apply Turtle Wax (wax on / wax off method as well) but that stuff dries ugly green in the hard to get corners. Green on white can be seen and looks like $%^.
Meguires works for me. Others use different wax and "spray on" method. I found the combined "wax on / wax off" cleaning and waxing `old school` arm movement method the best. For me, Meguires white in white corners in near invisible.
For cleaning the Rubber roof, I use Protect-All RV Rubber Roof Cleaner, a bucket and sponges. re: http://www.protectall.com/rrclong.aspx
For treating our Rubber roof (every 6 months), I use Protect-All Rubber Roof Treatment. re: http://www.pplmotorhomes.com/parts/rv-roofs/61311.htm
This year, I'm going to try Magic Boss Rubber Roof Treatment @ http://www.bosstechnology.ca/17-10-e...Treatment.html
Note: Some folks use different brands of roof protection. For example, Magic Boss and Dicor Roof Guard. I hear these products are "good stuff" as well.
If wondering, I do NOT walk on my TT's roof. I remove my shoes, slip on some thick socks, slip on some thick knee pads and "crawl" on my TT's roof. Always keeping near the edge and always ensuring 3 contact points at the same time. Some use a small sheet of plywood - to distribute their body weight even more.
IMO, cleaning / treating an RV roof is like doing cleaning / treatment maintenance on a kitchen floor. For best results, I do it "on all 4s" method, adding manual elbow grease and doing a "close up" visual checks at the same time. And if needed, I apply Dicor self levelling caulking after cleaning (but before treatment is applied as well). Up and Close on all 4's "the old fashion way - for best results.
Note: Some folks don't treat their RV's EDPM roof. It's their choice. For me, I see the positive results of before and after Protect-All Roof Treatment or other products. And, I've seen for myself that Protect-All Treatment Treatment dramatically reduces (near eliminates) black streaks as well. Thus, well worth using - even if only applying a minimum 1 time per year (during yearly roof seam / caulking inspections). Besides visual improvements, I now notice that Dicor (major rubber roof maintenance company) is now recommending "Treatment" on rubber roofs. Another reason to believe that treating rubber roofs is a good thing (in the long run).
Hope this helps others...