I am working on a bathroom remodel and need to plumb and flatten an interior brick wall in advance of tub installation and tile prep. The left and right alcove walls are stud construction and will receive cement backer board. The back wall is sound brick but the surface is uneven (concave from top to bottom) and needs to be built up by as much as 1/2" in some areas to be plumb and flat. What is the preferred material for the job? Stucco or something else? After floating the wall to plane with the correct material (followed by appropriate cure time) I intend to install my tub and then put up cement board on both the prepared masonry surface and adjacent stud walls. So, whatever I use to float the brick wall needs to be suitable for subsequent installation of backer board. Thanks in advance.
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