Covering this gap isn t a difficult process.
Join drywall and concrete wall.
Mix the thin set mortar.
All it takes is a quick patching job with fiberglass mesh tape.
At some point along the wall the cement backer board will meet with the drywall used in the rest of the room.
The wood is anchored to the concrete and separated with a sill gasket.
Cement board is also used in the walls of showers and bath surrounds where there s going to be a lot of moisture.
Use concrete nails and a concrete nail gun to attach the hat channels to the wall after drawing a plumb line to make sure you ve spaced the hat channels properly for the size of drywall and insulation you re using.
What can i do to transition between the drywall and the cement.
How to drywall over concrete with a vapor barrier.
Apply joint compound over the tape with a drywall knife.
Extend the compound out from the tape on either side by about 1 2 inch on each side.
There is a 1 2 inch ledge so the drywall will be flush with the concrete.
When the ceiling changes height across the length of a wall a gap between wall and ceiling can result.
Hold the knife at a 45 degree angle to the wall.
Drywall is pressed gypsum which is used in modern walls as the surface material.
Likewise concrete transfers.
During a drywall installation contractors affix large sheets of gypsum board to the wall s framing tape the seams between boards and then cover the tape with joint compound.
Leave a 1 4 inch gap between the greenboard and the cement board during installation.
Placing drywall often means dealing with walls and ceilings that aren t exactly plumb in all areas.
Drive three concrete nails spaced at even intervals through each side of each hat channel.
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.
Smooth the compound over the tape in a very thin layer.
The tiles will hide the joint and make the job of finishing the drywall easier.
Above the concrete walls are 2x6 wood framed walls.
Think of it like a large wick in an oil lamp or a semipermeable cell membrane that allows the transport of water.