Cement Board Drywall Outside Corner

The shower ceiling is hardibacker and the wall outside the shower is drywall.

Cement board drywall outside corner.

It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. 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. Durock is a type of cement board that is water and moisture resistant. Where these two meet what is the proper way to finish it so it s a nice corner.

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. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. I will just end up painting it.

Then just tile over the mud with thinset tile. Just as you would with drywall make sure the screwheads are slightly depressed below the cement backer board surface. 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. After pressing the boards into the mortar screw them in with screws made especially for cement backer board installation.

The cement board is on the wet area the drywall is on the dry area forming an outside corner. 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. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage. Keep the cement backer boards about 1 4 inch apart.