My roof drops 1" every foot which had been sufficient for my area zone 6. For additional support I used 4 x 4 posts in the center to attach a door and separated my chickens into 2 flocks
I bought multiple 10 ft rolls of 1/2" hardware cloth in a close out but they only had enough of the 2 ft wide rolls.Fortunately I hadn't added my rafters yet so I placed them on 2 ft centers. (My run is 8 x 16)
It took a couple wks to get the rafters up and attach all the hardware cloth with...