Cement Board Drywall Outside Corner

The cement board is on the wet area the drywall is on the dry area forming an outside corner.

Cement board drywall outside corner.

The shower ceiling is hardibacker and the wall outside the shower is drywall. Where these two meet what is the proper way to finish it so it s a nice corner. After pressing the boards into the mortar screw them in with screws made especially for cement backer board installation. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage.

Corner bead is most often associated with drywall. I will just end up painting it. Just as you would with drywall make sure the screwheads are slightly depressed below the cement backer board surface. I need to finish the outside corner above the shower alcove.

Are you saying just use the metal paper corner bead install with drywall mud even on the cement board. It is a long strip of corner piece made out of aluminum paper or vinyl and is installed over a drywall corner giving the drywall a finished and professionally done look. This video transition between cement board and drywall joint or how to tap drywall and cement board joint or tapping cement board and sheetrock shows the tra. Then just tile over the mud with thinset tile.

This joint needs to be flush and smooth in order for the tile or other wall covering to be installed correctly and to create a professional finished appearance. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. Durock is a type of cement board that is water and moisture resistant. Keep the cement backer boards about 1 4 inch apart.