I have an unheated, and uninsulated open-air coop. My coop has one whole wall open, covered only with hardware cloth. The winter interior temp in the coop is usually 10-15 F higher, than the outside. That's with a whole wall open. So you don't need insulation to raise the inside temp of your coop.
A coop is not like your house. In the winter, your house will be all shut up, with a furnace of some kind, generating heat inside. Your house is insulated, to help hold that heat in. A coop, with proper ventilation, will be OPEN to the outside, whatever the temp is. You close your coop up, like your house, and your chickens will have much, much more to worry about, than being chilly.
A chicken, with an average body temp of around 106 or so, covered with one of natures best insulators, does not need any help from us to keep warm. Insulating a coop, with cold weather in mind, is probably one of the biggest wastes of time and $$$s a chicken keeper can do.
A coop is not like your house. In the winter, your house will be all shut up, with a furnace of some kind, generating heat inside. Your house is insulated, to help hold that heat in. A coop, with proper ventilation, will be OPEN to the outside, whatever the temp is. You close your coop up, like your house, and your chickens will have much, much more to worry about, than being chilly.
A chicken, with an average body temp of around 106 or so, covered with one of natures best insulators, does not need any help from us to keep warm. Insulating a coop, with cold weather in mind, is probably one of the biggest wastes of time and $$$s a chicken keeper can do.