Welcome aboard, the T-2160 is a nice size. If it is a rubber roof you probably won't want to paint it. If rubber, there are several coatings available for rubber roofs to preserve and protect the rubber. The roof on my camper is aluminum. To coat it I used Henry #555 Aluminum Roof Coating.
Current- 1994 Sunline F-2410 Fifth Wheel (Modified to Gooseneck Hitch)
Current- 1992 Sunline C-951 Truck Camper
Previous-1984 Sunline F-1850 Fifth Wheel (Gooseneck Hitch)
Tow Vehicle- 2015 GMC Sierra Double Cab 4X4 3500HD Pickup