I am remaking some existing buildings on my place, they are approx. 70 yrs. old. They all lean like drunken sailors, so trying to keep anything level is a trick. The floor of the chicken coop has 1 inch gaps between the boards and they are all hooved every which way. I plan to recover the floor with plywood, eventually. Actually, the old man who built this did a great job and the wood is pure oak, huge and tough to nail anything to. He had put two large windows (floor to ceiling) covered with good wire on one whole side of the building, facing east. He made frames to fit them that can be removed and he had screens on these frames. I put plastic on them in winter and remove in the spring. I plan to put another window on the opposite wall for even more light and airflow. The walls also have 1 inch gaps between the boards, so I am lining the walls with heavy cardboard I have scrounged here and there for insulation. There is a building next door that I have changed drastically and will be using as a biddy brooder. I plan to connect them with a hen-sized walk-way and give me some extra space for the 25 chicks I am ordering. I'm sorry I can't send pics of the renovations, as I have dial-up, but I can tell you that it has been fun! I love taking something that you can't hardly use and making it into something useful again! My hens love, love, love their house with its big windows and fresh air. You can't smell anything in that house except hay, the droppings are dry and as fine as powder. I just scoop it up and put it directly in the garden! Good luck! Send pics when you do it....before and after!