I am currently in the process of designing a new coop and have been pricing materials. I plan on having at least 4 windows (2 on the south side, 2 on the north side). All four sides will have venting near the roof line as well. I live in Michigan where temps can range from -30 degrees wind chill in the winter to 100 degrees and very humid in the summer. Hence, I believe that having the option of closing the windows based on wind direction is important. My original plan was to go with sash type windows, attach them with hinges at the top, cover them with hardware cloth and prop them open from the bottom for ventilation. Similar to this: Now I am considering some other options such as single or double hung windows, that can slide open and closed, with the screen replaced with hardware cloth. Like this: I would use safety glass for any window option. Or, the other option would be to do away with the window idea and just install shutters that can be closed. Although this is probably the cheapest option, I am worried this will limit the light too much if the shutters need to be closed for some reason. Similar to this: What would you suggest and why? Thanks!