The assembly of the shower basin in our bathroom seemed counterintuitive to me, and that seems confirmed now that I have notice a leak between the finish foam tile floor and the subfloor... The basin sits proud of the wall panels and is trusting the subsequent caulking job. Yikes. There are screw covers, but the water can get behind the floor/basin and run down the wall. Did the renovator miss the boat, or am I missing something about the design? I wonder if there is a membrane, or thick paint-on layer, that can cover/span that seam in lieu of rebuilding the shower assembly...