I'm painting the entire exterior and interior of my coop with exterior paint and using exterior grade plywood for the walls, floors, and ceiling. I see lots of recommendations to put flooring in the coop. I will be using a deep litter method. Since it will be a solid sheet and painted is additional flooring needed? I figure just the paint and the plywood grade should stand up to an occasional hose out and from what I understand the poop rarely reaches the floor anyway. Sorry if I'm pestering you all with questions, I've never built a building.