Best practice for anything moisture-related seems to be cement board now (22mm floors, 12mm walls, t&g with adhesive).
Also the quality of marine ply isn't what it used to be...
Actually, when I think about it that was what they did for ours, cement board, liquid membrane, then tiles
@jeff80 started
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Best practice for anything moisture-related seems to be cement board now (22mm floors, 12mm walls, t&g with adhesive).
Also the quality of marine ply isn't what it used to be...