I was given 6 chickens which are now about 6 months old. Since these chickens were smaller than my laying hens I decided to keep them apart. It turns out that my isolation coop is not exactly secure and the chickens keep flying over the top of the door. I finally gave up and let them just have the main floor of the barn. I have just noticed that they have been eating the fiberglass insulation off the water line. I would assume the eggs should still be safe to eat but what about the meat. I plan to keep these birds for at least two years. Would any of the fiberglass or tinfoil outter coating be in there meat? Or would they be safe to eat? The birds look and act fine.