Do it yourselfers can use either 1 2 or 1 4 inch cement board in certain applications while other scenarios mandate 1 2 inch board.
1 4 tile backer on shower walls.
That s why it was named the most preferred brand of backer board by tile installers and contractors according to the 2019 tile and stone report conducted by clearseas research in partnership with the national tile contractors association and tile magazine.
Begin by removing the old tile or the fiberglass shower wall.
Begin with the length of the shower.
Smooth the cut edge.
The sheets are made from water resistant silicone treated gypsum reinforced on both sides by fiberglass mats.
James hardie 0 42 in x 36 in x 60 in hardiebacker with hydrodefense technology fiber cement backer board.
This is a dusty job so use plastic to cover your doorways wear a respirator that s rated for dust cover the floor with a drop cloth and make sure there s plenty of ventilation.
But as k ledgebldr told you above 1 4 backerboard is not rigid enough.
Measure your panels of cement backer board to fit the shower walls on each side.
Screws secure the cement board to the wall studs.
In this highly convenient inexpensive and popular application a moisture barrier of 4 or 6 mil thick plastic is installed directly over the wall studs.
It s the ideal ceramic tile underlayment for new construction bathroom remodeling pool areas and many other high humidity or wet areas 1.
Thick 4 x 5 ft.
I use 15 lb felt with 100 overlap over the studs on walls.
Hardiebacker cement board is made better to install better and perform better.
I have been using various types of 1 2 cement board on tub and shower walls and 1 4 fiber cement boards on bathrroom floors with 1 8 inch gap.
Sheets but tile dealers carry other sizes including 1 4 in.
Then the cement board is installed on top of the plastic sheeting.
Screw each panel to the studs using 1 1 4 inch cement board drywall screws.
Nothing wrong with 1 2 backerboard on a wall specially a shower wall and the same for 1 2 durock.
Put on mask and ear protection and as needed mark and cut a panel to fit using an angle grinder.
When doing floors i use 1 4 x 14 notched trowel with thinset over the sub floor.
Tile is laid onto the cement board with thinset mortar or mastic.
Also tile is heavy so put down blankets to protect the floors and tub from being damaged by falling.
It s typically available in 1 2 in.