Where is the best place to vent a coop in the winter? Floor level or roof vent? Do you folks even vent the coop in the winter? I have 6 hens in a 4x8 coop and when it is hot it starts to smell. I have been leaving the coop door open that is attached to a lockable run at night. That stops the smell. When winter comes I will be closing up the coop with only the access door open. Opinions needed. John