Automatic Door Opener for an Insulated Door

[boojosu]

Hello,

I'm fixing to build my chicken tractor. I have a design all scoped out and plan to pick up materials on my upcoming days off. I live in Wasilla Alaska. The plan is to build a chickn tractor with a run to move around the front yard when there is no snow. During the winter, I plan to park it close to the house for electricity availability and ease of getting to the coop.

I'm thinking I should build an insulated door for the coop, but I'm curious if an insulated door is recommended. I don't want it to get too stuffy/stale for them. I'm also interested in an automatic door opener for the coop, but the Auto Door set ups I've seen don't appear to be insulated. Does any one have any suggestions?

Thanks