Uncoupling membrane
I’m going to be installing a seal system shower (I think that’s what it’s called, with a FloFX bonding flange) in my pier and beam house I’m building. Shower base is 76”x42” over 3/4” Advantech plywood. One of my many questions is this: can I use 1/4” cement board (could only find PermaBase in my area) as an uncoupling membrane of sorts? I am going to install it throughout the rest of the bathroom and laundry room floors and figured I could run it continuously into the shower floor as well, including under the concrete curb I’m going to pour. Then when I install my deckmud, it can bond to the cement board. Would I need to still install tar paper and wire lath before deck mud if I did it this way? Thanks in advance. And sorry for the blurry picture, it’s a screen shot from a video I took.
