If you try to put a poly on the floor you will have a mess in a few years. If you also cover it with ply, OSB or any other similar material you will have a royal mess. It will not work long term. Where is the moisture in the concrete going to go?
Tile 4 You LLC Troy, MI
KERDI Shower Specialist ... DITRA Installs ... Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong! - PRODUCTS ADVERTISED WITHIN MY POST ARE NOT ENDORSED BY ME!