It is only April and it has already reached 80 degrees. We built a new coop this winter, it has plenty of ventilation and space. The coop is next to a tree line, so it is mostly shaded. It is getting really hot in the coop during the day. I have been freezing water and putting it in the cages to keep the chickens cool. What can I do to keep the coop cool during the day that is more permanent than frozen water bottles? We were wondering about a solar fan or something? We do not have electricity available to our coop. Any ideas?