We had an existing large storage shed and we added the coop to the back side. The coop has a sloping roof of 2x6 pine rafters attached with hurricane straps and a corrugated tin roof with 1 clear corrugated polycarbonate roof panel to let in light. Framed out with 2x4 studs placed on concrete footings and covered with chicken wire. We left 1 foot of chicken wire to extend around the base of the coop and covered it with dirt to keep out digging predators. We added a standard screen door and reinforced with rabbit wire.