membrane on. And again that overlaps the bottom membrane by about six inches. You notice that the thinset goes all the way down to the floor there. And that gets lined up. Goes from the floor and up. And before I press the entire thing on too tightly I'm just lightly installing the thing. It's just barely holding on just by sticking a little bit to the thinset. Not too much. If you're working at this point it's super hard to shift it around and you're going to get bad adhesion. It's going to be all crooked and full of bubbles. So just kind of gently put it on there. So now I'm stretching out the top here so that I know I've got the right length on each wall. And you notice I use a single piece of membrane here rather than having an individual piece for for each wall. You can do it either way. And then as long as you've got like a little overlap in the corners there or you've got a thin piece that actually goes over top of the corners over so that can kind of join the panels together. That's fine. I just go with a single piece just for added measure of protections. There's no seams then. Once I've got everything lined up I just work it in. I work from the corners and out so that any bubbles that are in there get pressed over to the edge. And again the next layer overlaps the first layer. It kind of go on shingles in that way the lower layers go on first then the top layers go on. And that way when the water drips down due to gravity it goes over top of the next level of membrane rather than getting sucked in behind it. And it's important that your corners are fairly square as far as the membrane goes. Like it's easy for the membrane to round over and then you won't get a good layout with your tiles. And here's the finished job. It's all sealed up. All waterproof now ready for tiles.