[memen]

You will want to go and check every seam. Double the screws in those areas just to be sure it is attached properly. Using the flat side of the trowel, fill the joints with adhesive, smoothing it, so the adhesive extends at least two inches on each side of the joint. The tape will be easier to install with this extra adhesive. Start your screws in the center of the board and work out. It is important to highlight that screws shall not be installed all the way down to the floor joists.

[BillRoundsEsq]

When you are going to install the backer board as a floor setting surface, you will need the following tools:

[happymoon]

The purpose of the thin-set is to eliminate voids beneath your backer board. The backer board will not expand, but walls will and if you butt joint the installation, the floor might pop out. Install the backer board in such a way that you won’t have four corners meeting at one single place. By staggering the joints, you will increase the substrate toughness by reducing your weak points. Apply thin-set just one row at a time so you can replace and reinstall them faster and easier. here

[migrainerelief4]

Once you have your materials and tools, you'll complete the following steps to install your backer board. more

[astrid01]

Once you have placed all backer board sheets, install screws every six to eight inches although every backer board following the manufacturer’s recommendation. Do not use drywall screws as they are not recommended to be used to hold the backer board in place. All of your backer board pieces should be cut before they are placed on​ the floor. Along the perimeter, screws should be installed at least ½ inch from the edge, but no more than 2 1/4 inches. [links]

[foobar]

Use a chalk line to mark the dimension of the backer board sheets onto the floor. Remember that it is best when joints in the backer board are not aligned with the joints in the subfloor. Using the trowel, spread adhesive and ridge it with the notched side of the trowel. Next, place a sheet of the backer board over the wet adhesive. Remember that the wall gap shall be about 1/4 inch with 1/8 inch between backer board sheets. here

[kosovito]

Cover each of the seams with fiberglass mesh tape. Smooth the tape along the seams, keeping it centered on either side of the joint, and cut off the excess when you reach the end. [links]

[loungedaddy]

Cover the bathtub with a drop cloth and tape the edges to the tub to make sure no dust or debris escapes into the tub beneath the cloth's edge. here

[johnhurt112]

Install the sheet 1/8 inch above the first, leaving room for thinset mortar, which will strengthen the seam. Use 1/8-inch spacers to maintain the gap as you secure the board with the cement board screws.

[enhytgb]

Install the first full sheet of cement board lengthwise against the back wall (long edge of the tub). Hold the sheet against the wall and insert 1/4-inch spacers to keep the cement board 1/4 inch above the tub's lip. Screw the board into place with 1 1/4-inch cement board screws. Insert each screw straight and make the screws flush with the board. here

[harding]

Cut the boards for the remaining sides of the tub and install them in the same manner, leaving 1/8-inch gaps in between adjacent boards. more

[TheColdOne]

Cut the next sheet to fit above the first, if necessary, with a utility knife. Cut straight by clamping a straightedge along the length of the board, score and cut down the length of the edge. Use a jigsaw to cut out shapes for windows, and use a drill with a carbide-grit hole saw to drill out holes for pipes. here

[Siegmund]

Lay the backerboard down one sheet a time. Screw the backerboard to the sublfloor with 1 1/4-inch backerboard screws. Screw the backerboard approximately every 8 inches or at the locations marked on the sheet by the manufacturer. Stay at least 3/8 inch away from edges and corners to prevent splitting. [links]

[virtualcoin]

Mark the sheets that need to be cut. Score the sheets that need cutting with a carbide backerboard cutter. Snap the sheet along the cut line. Remove the backerboards from the floor and sweep and vacuum the floor. here

[agaumoney]

Cement board, also known as backerboard, is used as an underlayment for tile flooring and walls. The boards typically come in 3-foot by 5-foot sheets and can be cut to size. Backerboard, once installed, does not move or expand. This helps prevent tiles from shifting and grout from cracking. There are several manufacturers of backerboard, but most are installed in a similar fashion. On flooring applications, the backerboard is installed with thinset mortar and screws over the wood subfloor.

[Zero]

Mix a bucket of thinset mortar in mixing bucket according to the manufacturer's instructions. Apply the mortar directly to the wood sublfoor with a 1/4-inch U-notched trowel. here

[Confiscative]

Plan the layout of the backerboard sheets prior to installing them. Stagger the joints by one-half of a sheet wherever possible. Lay the sheets down on the subfloor as a test run. more

[Martian]

Apply thinset mortar to all seams and joints. Place mesh backerboard tape into the mortar, then smooth it into the mortar with the flat side of the notched trowel. here

[DarkMatter]

In most installations, a layer of cement board is screwed directly to a plywood or OSB subfloor, or more frequently, to the wall studs for wall installations. While most tile manufacturers do indicate that their products can be applied directly to plywood, cement board often provides a better base.

[darkskiez]

Normally, installing cement board is not regarded as necessary when you are laying tile onto a concrete slab.

[david345]

There are three infrequent cases where installers are sometimes tempted to install a layer of cement board before applying tile: