Haunted, Love the idea of fiberedcement board, with elastomeric over that. I was gonna do tile board with ceramic tile over it in my big coop, but wife talked me out of it. Said I went kinda crazy with our coop as it is..Ya know.... it's a guy thing! so I went with congloeum instead. However, am planning on a Bantam coop as I type. Have 7 babies on the way, flying out tomorrow. Gotta get moving on the new coop asap. Might try the elastomeric in this one. Only gonna be 5' x 8'. Will post pics when I start. If ya got some time, check out my page and let me know what ya think.
Erik