I have an old dairy barn I would like to convert into some chicken space. It's 90' long and 40' wide. Concrete block on the first floor and wood framed second floor hay barn. It's very rough! I was thinking of converting the old calf areas to chicken areas. Kinda like a building within a building. It has to be predator proof bc my whole flock got wiped out last year in their makeshift outside runs with plastic chicken wire...never again! I want an outside run too. There are limited windows...only a roll up garage door at one end...and a roller door where the cows went out. The walls are concrete block and the floors are concrete. with a recessed trench that goes the whole middle of the 90' barn. We have aweful weather here....so, I was thinking it needs to be insulated or have panels I can put up in the winter to keep them warm. I would like some pens for silkie breeding, a area for my EE, an area for my Orpngtons and whatever else I choose to raise. I have no power or water there right now. I was thinking solar and rain water catch systems.... Any ideas....throw them out! Thanks!