I intend to use KERDI membrane behind some new bathroom wall tiling backed by drywall.
How feasible is it to transition from using the membrane to not using the membrane on a neighboring section of the same wall (i.e. only one section of the wall needs waterproofing, but the transition shouldn't be noticeable once tiled).
The specs say the membrane is 8mm thick, but I'm not sure if that'll be too large a transition for a good tile finish.
Best Answer
I like to use Denshield for tiling bathroom surrounds. It is the same thickness as the drywall and it comes with a waterproof membrane already installed on it. This means that there is no transition disparity between the drywall and the DenShield.
You can run the final row of tile over the joint between the Denshield and of the drywall. You need to use a fiber mesh tape and a liquid waterproof membrane over the seams and corners any of the screwheads but the rest of the field is already waterproof and textured to except tile.
You would remove the existing sheet rock where you are going to tile and replace it with the denshield.