Cement Board Drywall Outside Corner

Keep the cement backer boards about 1 4 inch apart.

Cement board drywall outside corner.

Cover and mortar the seams with fiberglass seam tape. I need to finish the outside corner above the shower alcove. The shower ceiling is hardibacker and the wall outside the shower is drywall. At some point along the wall the cement backer board will meet with the drywall used in the rest of the room.

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. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. The cement board is on the wet area the drywall is on the dry area forming an outside corner. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides.

Then just tile over the mud with thinset tile. I will just end up painting it. After pressing the boards into the mortar screw them in with screws made especially for cement backer board installation. Where these two meet what is the proper way to finish it so it s a nice corner.

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. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage. Are you saying just use the metal paper corner bead install with drywall mud even on the cement board.