Confusing theory with vapour barrier in basement bathroom
I know that it is necessary to have a continuous vapor barrier in basement exterior walls ( inside the walls, after the insulation). At the same time, it says that there should NOT be a vapour barrier in bathroom walls ( below the tiles), because there is another vapour barrier on top of the tile carrier board ( either backer board or cement board )to make the wall water-proof. Contradiction occurs when one of the bathroom wall in basement becomes exterior facing walls; should I install a vapour barrier in this case or should I “break” the “continuous” vapour barrier just across this bathroom wall ?
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