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 ……
Replies
Sure,
As long as the floor meets deflection criteria, there's little difference between a full mortar bed and a mortar bed topped with SLC.
agree...
Vacuum it well, then use a primer and SLC. If you;ve never used SLC before, then read up ahead of time.