I'm in the process of doing my bathtub walls and I'm thinking of using Denshield™ boards. My total area is 55 sq ft. I found 4'x8' Denshield™ sheets so I will need to buy two sheets to cover my area (32+32=64 sq ft). I will end up with having two seams at the top of the shower that will later be covered by the tile (see image).
The manufacturer says that there is no need to use a liquid membrane (like Redgard). Instead, I just screw them down with corrosion resistant screws, tape and thin set the seams, then use 100% water-proof silicon caulk in the corner seams. They said that it's guaranteed to last for a long time.
- Are Denshield™ boards better than cement boards?
- Is it a good plan to have only one seam in the middle area at the height of 4' from the tub deck and one seam in the right area also at the height of 4'?