justlyndon

Me personaly I would tank it. You will still get moisture through the grout unless its apoxy so a water resistant board is useless. A WP1 system is best to use I find. the problem with water resistant materials is that they are only good for splash really. if you think about it we average about 5 showwers a day these days if you include the kids so that is a lot of water . But thats my thought