I am planning on installing 5/8'' bamboo flooring in my three story townhouse. I just ripped up the carpet and pad on the second floor and discovered the subfloor material is not wood, but rather something that resembles cement board used for tiling. When I pulled the nails from the carpet tack strips out, some small pieces flaked off.
Does anyone have an idea of what material this subfloor might be? Is my guess of cement board correct? I would take a piece of it to home depot to compare, but just haven't had the time. If it is cement board, am I correct in assuming that my nail-down job just became a glue down job?
Thanks in advance,
Joe