The old roof was tarp,I found a real bargen at the local steel company so I decided to make my roof strong enough for snow it coast me $175,00 for 40'x10' they sold them cheap BC they cut them wrong size for thier customer.
That run is very similar to mine except I have wire on the roof. I thought they needed the sunlight. What you have is what I wanted to do.........but mine don't free range and I was afraid they wouldn't get enough sun. Sure would solve some other problems though............Looks Great. Nice slant for drainage. Great Bargain.