This structure is at least 15 years old - most likely older. The wood is in decent shape. It is pretty sturdy as well. I climbed up in it to take pics. It used to sit in our back yard with a slide and swings attached. It has been back in the woods for at least 7 years. My husband has been reluctant to build me a coop, but will help revamp this. Of course he built this structure. Lol It has 3 openings and no top. So, what would your recommendations be to remedy this? How could we add a roof with proper ventilation? It is very high up off of the ground, so we are going to cut it to make it lower. How far off of the ground should we leave it? Thanks!