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Drywall is also used in the bathroom. Moisture -resistant GKVL gypsum cardboard must be glued to the wall. Everything from all sides should be treated with a primer. The usual drywall can also be used, but before that, the primer needs to be walked on the two sides of the entire sheet, that is, on the front and back, you need to go through absolutely all edges. A primer for the edge does not need to regret. All joints of sheets are protected very well when gluing with a special hydrophobic tape or when waterproofing. A very simple way on a sheet of GKL is glued tiles. The seams need to be wiped very carefully so that the moisture cannot get on them. Drywall in a very short time gives us a very even surface.