Russell Zinck
New Member
Long story short, this is my first home build and I need to raise the floor under my shower tray by 1.75 inches to allow the drain to connect properly. Subfloor is a suspended concrete slab - there is no option to cut into it and change the height now. I have a large supply of HardieBacker 1/4" sheets. Any problem with me layering them until I acheive my desired thickness?
My plan is to use unmodified thinset between the concrete floor and the first layer of HardieBacker. Should I use thinset between each layer? I'm aware that this might not be the best way to raise the floor, but I already have the materials to go this route.
My plan is to use unmodified thinset between the concrete floor and the first layer of HardieBacker. Should I use thinset between each layer? I'm aware that this might not be the best way to raise the floor, but I already have the materials to go this route.