We are in the process of converting a shed to coop. 10x5 to hold 4 chickens. I'm wondering if home insulation is ok? Ya now the fiberglass pink stuff. Will the chickens peck at it? Get sick if they do? We also have 3 in think styrafoam (sorry I'm not the worlds best speller). I was thinkin mabey this would work better. But my main concern in if they pick at it will they sick?