A couple of campers ago, the wind blew my awning over the roof and it ripped on the TV antenna. I used the roll awning repair tape (it is clear and about 3" wide) in the RV section at Walmart. The tape never came loose and it never leaked. I put the tape on both sides of the rip (about 2' long), using a cutting board from the kitchen to give me something firm to press against when I applied the tape. I applied it on a sunny day and let the awning get heated up in the mid day sun to make the glue adhere better (at least in my mind), worked like a champ.
2011 Ram Truck 2500, Crew Cab, 6.7L CTD, 4X4, 3.73 Rear