U-profiles are mounted to the floor and ceiling with the help of dowels + screws + washers utilizing a drill. In accordance with the properties of gypsum mortar, you can find h2o and fireplace resistant and soundproof plasterboard. Learn our linked post about the different types of gypsum board ! https://lane8fowd.ltfblog.com/31343697/getting-my-gypsum-board-installation-to-work