What is the best substrate to use for the shower?
Different substrates can be used with Super shower finish although a fiberglass re-enforced substrate attached with screws is preferred by many contractors. Once all of the substrate joints are taped with fiberglass mesh and sealed, a 3.4 diamond lath should be used over the substrate followed up with a scratch and brown system and then topped off with the Super Shower Finish. Thickness of the scratch and brown varies but a ½ inch system is common.