Been looking through coop designs and articles about coop insulation and ventilation requirements. I understand that the coop needs a good deal of ventalation especially during the winter. I also understand that I need to insulate the coop for the winter.. Most designs I see have the vents up high but wouldn't that just let all the heat out? My thoughts are that heat rises and the hot air would go up and out the vents. just trying to finalize my design and this is the last thing m trying to figure out.