Well on my prototypye, we used 3/4 inch plumbing tubing in white to make a roof frame and legs instead of tent poles... not the copper tubing due to
weight. On our previous trailer with a pole and rope system, the roof always sagged and gathered water too.
The tubing did add rigidity to the roof in a more even way. We are also playing around with using three front poles, two shorter ones at the sides and a taller one in the middle to form a peak to help shed water.
I hope to hook up with roy this weekend who has a
trillium awning to sell, that I could use as supplies. I will continue to work out my design... (ohhh that I enough money to buy anything and everything that I wanted for my little boler!!) and see if I can figure out how to post pics... or not if I
fall flat on my face!! Since it is the same
trillium awning as yours, maybe i will have some luck and can offer advice!
I don't understand what you are going to do with the ripstop nylon. It is not waterproof, but would give sun protection. Are you going to put it on top of your awning? or use it instead of the awning?