Using OSB to re-enforce Kerdi-Board
I am using Kerdi-Board for the three walls of shower
I think 1/2 inch OSB on studs with Kerdi-Board will add strength and rigidity to my shower walls. Does this sound a as a good idea. Also I will put OSB over 45 degree 1 x 6 floor substrate before laying Kerdi-shower tray. This will make floor very strong...is that over kill?
Is external plywood better than OSB for this?