I am in South-central TX, HOT summers and mild winters. Building a smaller coop 8'x7' and wondering if I can just use the Smart siding sheets from home depot- which I think is 3/8" thick, its like a plywood with groves and already primed (NOT Hardi-cement board, I have used that with plywood before). I don't mind adding the plywood under if needed. Thoughts? Anyone used the Smart siding before?