I bought this from Menards, it is laminated on both sides, foil goes up toward the roof, and white laminate goes toward the chickens. They have yet to peck at it. I suppose because the lamination on the side that they see is pretty heavy and not easily punctured. It really cooled the coop down after I finished lining in between the rafters with it. So far they have left it completely alone.
http://www.menards.com/main/buildin...d-faced-insulation-board/p-1356987-c-5779.htm
http://www.menards.com/main/buildin...d-faced-insulation-board/p-1356987-c-5779.htm