Type of roof on 2013 Big Country 3510 RL?

I am trying to determine what kind of roof my 2013 Big Country 3510 RL has, however, we have recently moved and I have misplaced my owner's manual. Can anyone shed any light on this subject? I plan to wash the roof this weekend and want to use the correct washing detergent. Also, any other advice on roof maintenance/repair would be much appreciated as I am two years into owning this first time 5th wheel RV.

Very respectfully,

Cheese

Mild soapy water with little scrubbing. If you have spots on your roof it is normal. Once done inspect for caulk that needs to be redone. Usually the caulk inspection is a yearly task.

Wash the roof first then the sides. Stupid me did just the opposite, got to rewash entire camper again. Any problem using automotive type wash with wax in it?