Hello everyone! My mother and I are just about ready to begin construction of our coop (we plan on having 6-7 hens when all is said and done) and there is a bit of concern in regards to the winter temperatures here in Upstate New York. It often reaches -20 here in winter, so my thought was to sandwich some 1' pink rigid insulation between the interior and exterior walls of the main structure, so the hens wouldn't see it/peck at it. From everything I have read here and in my copy of Living With Chickens, the 1" sounds like it would be more than enough but my Mom thinks they will freeze their butts off and wants the coop insulated with...well, pretty much the thickest stuff she sees at Home Depot. Any thoughts? I understand the need for ventilation and after reviewing all of the coops members have posted here, I have some great ideas in the works for roofing vents as well as hole spacing. It would be worth noting that the coop will be more of a "tractor" style and will be moved into a large "cold storage" garage, where the hens will be out of the winter winds and yet get lots of natural light. Thanks so much!