Hello I have a peak steel roof on my chicken coop. Under the roof edge that meets the coop sides is a ridge vent on each side of coop measuring about 2-3 inches in width and about 3' long. Do you think that is enough ventilation for them to have during the winter months. Also the roosting board the chickens use is about a foot away from side wall and is just a bit above ridge vent. Should it be lower then ridge vent. I have 6 buff orpingtons and I'm so nervous about the massachusett winter that will be here soon. I want there winter to be comfortable and not quite sure what to do. A bit of heat like a sweeter heater, or a ceramic bulb, just to take the edge off and keep coop above freezing. I love my chickens but the stress of worring about them can be to much for me. I'm a worrier and I can't help being concerned.