So we have an older shed that we use to use as a cabin. We brought back to our house and now I want to use as a chicken coop. My questions are. Is there a window requirement? We have four Windows with screens that are the crank style. Is that enough light? Also, it is insulated and covered with what I think I want to call partical board. Does it have to be sealed or painted? Also it is sitting on gravel. Is that okay? We cannot remember if the floor is insulated. Lastly, I have a friend that does flooring and he has left over vinyl flooring. Can I just use that to lay over the floor to help with ease if cleaning? Those are my starter questions for now. Thanks in advance for your suggestions.