Cement Board Drywall Outside Corner

Durock is a type of cement board that is water and moisture resistant.

Cement board drywall outside corner.

Where these two meet what is the proper way to finish it so it s a nice corner. Cover and mortar the seams with fiberglass seam tape. 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. Keep the cement backer boards about 1 4 inch apart.

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. 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. 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. Just as you would with drywall make sure the screwheads are slightly depressed below the cement backer board surface. At some point along the wall the cement backer board will meet with the drywall used in the rest of the room. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common.

Corner bead is most often associated with drywall. I need to finish the outside corner above the shower alcove. The shower ceiling is hardibacker and the wall outside the shower is drywall. Then just tile over the mud with thinset tile.