I had mold develop on our first trailer awning and I used some bleach, dishwashing soap, water and a pump up sprayer. Soaked the awning top and bottom, rolled it up for an hour. Unrolled it and hosed it off and it was good to go.
Be cautious of the the amount of bleach you use, I would suspect it could fade the colors but honestly I did not care about color fade, I wanted the mold gone.
2016 Rockwood Ultra Lite 2604WS (Emerald Pkg)
2015 F350 Superduty Powerstroke.
Trecker WDH Hitch
Lazyboy Recliner replaced Back two chairs.....