I was planning on using insulation board (those styrofoam like material with aluminum on both side) instead of blown insulation or the roll of fiberglass insulation. I thought I could just cut the boards to size and "pop" them in. Then my partner said "Don't be stu**. They are chickens. They'll peck it apart!!" Do I need to cover up the insulation board with 1/4" ply or can I leave them exposed? The bottom 12inch will have linolium tile but anything above 12 inch would be exposed. There will be an insulation board under the plywood floor and under the ceiling. I'm planning on finishing the coop today with the exception of the window. No glass yet!! Thank you.