I second the windows on the south side. My coop only has a small window in the east side and it gets dark in there about one o-clock. Not, Oh-MY-Gosh-I-Can't-See! darkness, but dark enough that the chickens prefer to stay out in the run until the light comes on. I keep the food and water in the coop so they dash in to eat and drink, then hang out outside until the sun goes down.
The key to ventilation is to let the moist air out, but not create a draft on the birds. Keep the ventilation above the roosts. Expanding on Jim's suggestion, have you builder leave the wall panels short so that the openings are under the eaves to be protected from rain and snow.
During the winter, my chickens will occasionally get a little frostbite on their combs. But my coop is a concrete building with a concrete roof, so not much room for adding more ventilation. As Jim said, just opening the door and going into the coop helps with air exchange.
If I could, I would build the roosts like a ladder and hinge them high on the wall. Then When I need to clean out the coop, I could just lift it up and hook it to the ceiling to get it out of the way.
The key to ventilation is to let the moist air out, but not create a draft on the birds. Keep the ventilation above the roosts. Expanding on Jim's suggestion, have you builder leave the wall panels short so that the openings are under the eaves to be protected from rain and snow.
During the winter, my chickens will occasionally get a little frostbite on their combs. But my coop is a concrete building with a concrete roof, so not much room for adding more ventilation. As Jim said, just opening the door and going into the coop helps with air exchange.
If I could, I would build the roosts like a ladder and hinge them high on the wall. Then When I need to clean out the coop, I could just lift it up and hook it to the ceiling to get it out of the way.