So we live in southwest Ohio where it can get below 0 in the winter and up to the upper 90's in the summer (with ~90% humidity as well). I'm trying to finalize my coop design and I've currently got 1/2" T1-11 exterior sheathing with fiberglass insulation and luan or showerboard planned on the inside. Do I really need the insulation and inside boarding? What about the roof, I was thinking of the PVC/polycarbonate panels at Lowes/Home Depot but I can't see them doing much to keep heat in during the winter, but again how big of a concern is this? The coop will be located where I could run an extension cord out to it in the winter if necessary for a heat lamp or something. Thanks!