Hi, Im new to keeping chickens and have only had my 4 Isa Warrens for 3 weeks. What i would like to know is, do i need to insulate the coop over winter. I am and Scotland and our winters are not to severe, probably reaching -4/5 degrees at most overnight. Dont know if its down to climate change or not but our winters now appear to be more windy and rainy. If i do need to insulate, how's best to do it.