buckeyechicken, what is that white material you're using for siding?
Something I've learned the hard way from my first tractors is that the roof has to be at least a little slanty, or water and ice collects on it. But the good news is that I have lots of small bits of roofing and other materials that I can scavenge for some tractors.
This is what my coop, run and Yard looks like 32' wide 25' deep and 5' tall. coop is 8' x 9' run is 9' x 9'