Still puzzled by this. Composeal turned brittle and shrank.
Doesn't look it, but it is over backerboard, which was perfectly fine and well attached. Looked like it was installed correctly.
I would encourage a membrane embedded in plastic paint based on what I have seen. Noble is cool. Not Redguard, it is not tough enough, it tends to shred under foot.
If you keep those drains, it will pose difficulties avoiding a bird bath in the middle of the floor. At least add a center drain, consider trench drains like whatadrain. You want to attach your waterproofing to the drain. You need a Kerdi drain or similar style with the cotton candy on the edges or a plastic bonding flange. I might consider KerdiFix helpful in that attachment, depending on the drain. However you do it, the junction of drain and membrane is critical and must be thought ahead to have a proper drain for your membrane to bond to. I would still tear the wall off and ditch the drains, much more trouble free.
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