i would put wood over blueboard, as the blueboard i had inside exposed they pecked the heck outa, non of them died from it tho.Hey I'm up in fairbanks Alaska (60 below at the coldest) and I wanna say thank you for this thread.
People were lookin at me like I was crazy when I said I didn't think I needed a super insulated coop. Though i am only going to have 12 birds so I think some blue foam board is gonna be just fine.