space between cement board and tub
For my bath surround/shower, my GC put up cement board without the 6mm poly. I need some sort of waterproofing and was thinking about using HydroBan. However, there is a 1/2 inch gap between the bottom of the cement board and the top of the bathtub flange. What is the best way of dealing (waterproofing) with this space? It is too big a gap to silicone.