Tile Backer Board Detail

Cement board detail 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.

Tile backer board detail.

Apply it to the wall with the bottom edge about 1 4 in. Use 5 8 inch backer board as a fire rated material similar to type x drywall. Then apply a generous amount of thin set to the bottom bathtub tile and position it 1 8 in. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water.

Thick 3 x 5 ft. Use 1 4 inch backer board on curved applications or on vertical surfaces such as fireplaces. Leave a 1 8 to 3 16 inch gap between adjoining sheets of backerboard and at edges. Excellent tile adhesion to help protect tile work ease of use and performance hardiebacker cement board s unique cement formulation and structure provide the ideal combination of strength uniform composition and performance that no other backer board can provide.

Joint details for cement backerboard under tile. Quarter inch and 5 8 inch thicknesses can also be found. Cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas. Durock glass mat tile backerboard consists of a treated water resistant gypsum core that is covered with a coated fiberglass mat facer and back and has a proprietary surface making it ideal for use in wet areas as a tile substrate.

Just before tiling fill the joints with thinset and cover with 2 inch wide fiber mesh tape unless the adhesive manufacturer recommends otherwise. Above the lip of the tub.