I built it insulated with port windows for added ventilation. I live near Austin Texas so it gets pretty hot here in summer. I added the automatic Chicken door and slide out dropping board. I also included a built in table for my brooder. The run is lined with ground limestone and sand and has a dirt pin and swing for their entertainment.
I built it on a platform for it to protect it from moisture, the area under it is for feed and treats and such. It does have a fan and it is completely shaded all year.