Drywall is pressed gypsum which is used in modern walls as the surface material.
Cement board meets drywall at outside corner.
They make 4 inch alkali resistant mesh tape and this stuff works great.
If you have outside corners to do then you may decide to just get the 4 inch mesh tape only and use it anywhere you.
The walls were easier because i had tile wrapping around the corner so i just taped and thinset those and tiled overtop.
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.
Where these two meet what is the proper way to finish it so it s a nice corner.
In this video i will show you how to prep a corner bead and where cement board and sheet rock meet.
Corner bead is most often associated with drywall.
The shower ceiling is hardibacker and the wall outside the shower is drywall.
Outside corners can be difficult with 2 inch mesh tape.
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.
Cement board is also used in the walls of showers and bath surrounds where there s going to be a lot of moisture.
These areas are pretty simple to prep but there are a few.
Greenboard is a moisture resistant drywall product designed for use in areas of high humidity and where occasional incidental contact.
It s hard to get the tape to fold over the corner and stay long enough for the thinset to set up.
I will just end up painting it.
How to make the transition from cement board to greenboard.