To cut a backer board mark the board score it with a.
How to hang backer board in a bathtub shower wall.
If needed cut the backerboard to fit in small spaces or around obstructions.
The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area.
Install blocking for future grab bars while the walls are open.
Above the lip of the tub.
Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in.
Install the backer board.
Cover the wall studs in plastic sheeting cut down to size with a utility knife to act as a moisture barrier for the wall studs behind the backer board.
Carefully lift the backerboard panel into the tub area and set it on several shims placed about a foot apart to maintain a 1 4 inch gap between the board and tub.
The facing serves as an integrated waterproofing membrane so you don t need to install a separate layer of plastic behind the tile backer or a sheet membrane over the backer.
The fasteners should be flush with the surface.
Proper way to install backer board in tub area no matter what the board is made of it should not sit on top of the tub flange.
When the bathtub is installe.
One type of tile backer board is made with a water resistant facing on both sides of the board.
Georgia pacific s densshield is one such product.
Membrane faced board only.
There is no need to install backer board on a concrete substrate ceramic tile can be applied right over concrete provided the surface is flat smooth and free of significant cracks.
Apply it to the wall with the bottom edge about 1 4 in.
All the insider information on how to build and waterproof a.
Score the board with a utility knife then cut it using a jig saw with a carbide blade.
Anyone can enjoy the benefits of a cement board shower system if you follow these 3 easy steps.
Measure the work area and cut your boards to fit.
The backerboard should completely cover the subfloor joints.
You don t need to use a backer board in the entire bathroom just in the wet shower area.
For highly wet areas such as showers and bathtub surrounds cement board typically is attached directly over the wall studs and the studs may be.