Since we havent' started the coop yet I figure this is the best time to ask the questions. We definately plan to cover the run with something - last time we attempted to have chickens we used a tarp. It worked OK but we had a lot of pooling - do you suggest putting the run - roof at an incline? We are doing that with the coop roof but hadn't thought about it for the run.
A roof on the run can serve different purposes, shade, hawk or other predator protection, and to keep the run dry. For shade or predator protection, an inclined roof won't matter, but if you want to keep the run dry, a sloped roof is a lot better. A huge concern on a roof that allows pooling of water or is subject to snow or ice load is that it can get very heavy and the framework has to be strong enough to support that load. One that holds water will rot faster. I'd certainly recommend sloping it regardless of the material used.
