Tub Surround Backer Board

Greenboard is ok for regular walls in a bathroom but doesn t really add anything that proper priming and painting would but for a shower tub surround use cement backerboard.
Tub surround backer board. Hold the sheet against the wall and insert 1 4 inch spacers to keep the cement board 1 4 inch. It s typically available in 1 2 in. The panels are nasty to handle because of their sharp edges so wear heavy leather gloves. Cement board cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas.
When it comes to installing a tile backer board the easiest to install is usually the worst choice or most expensive option. Above the lip of the tub. Tub surround adhesive with low odor low voc and easy water cleanup is an ideal interior construction adhesive. When the bathtub is installe.
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. Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in. Apply it to the wall with the bottom edge about 1 4 in. Install the first full sheet of cement board lengthwise against the back wall long edge of the tub.
Loctite powergrab 10 fl. Greenboard is just regular drywall with a coating. It is designed to bond most plastic surround tubs to waterproof drywall wood sanded tile board and ceramic tile. The ideal underlayment for ceramic tile is cement backerboard which comes in 1 4 and 1 2 inch thick panels measuring 3 x 5 feet and 4 x 8 feet.
Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water. The dense gray material is very heavy so use the smaller size for replacing tub walls. Thick 3 x 5 ft. To do this you need backer board that is 1 2 inch thick or to build up a thinner board with.
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.