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I have a small (5' x 5') bathroom I want to retile. The old tile is set on a 1.5" mortar bed over lathe over a subfloor. If I chisel away the old tile I end up with an uneven mortar bed.
Question: can I just pour a layer of self-leveling mortar over the uneven mortar bed and then apply thinset and retile or is this just stupid and I should bite-the-bullet and completely remove the old mortar bed and lathe and then build up the foor again with plywood and backer board ?
Thanks in advance for any help ......