We decided to put the coop against the north side of our existing barn - to add stability but to also to provide shade from the intense summer sun. I don't think I have a picture of it, but we eventually put a small window in this north facing coop wall, about 3 feet up. It's a window from the back of a camper truck, so half if it slides open. We put wire over the outside of it and have left it open all summer. Note that we put the roof vents up so that they overhang on the west side - this helps to keep the rain from pouring down right over the entrance to the coop.