I'm new to chickens and I'd like to build a nice, sturdy coop for my girls. I happen to have a metal shed that I'd like to convert. I'm not too worried about insulation in the winter as our winters are very mild but I am worried about the shed getting too hot during summers. Ideally, I would remove 1 full wall of the shed and leave it open to a protected yard. Additionally, I would cut 6-10 inches around the top of the remaining three walls for even more ventilation (covered with wire of course). Do you think this will be okay for my chickens? The last thing I want is to create an oven! It should also be noted that the roofing on this shed is sheet metal as well. Any help or tips is greatly appreciated!