Proper Flooring Under Cement Board

Fiber reinforced gypsum underlayment fiber cement board and cementitious backerboard these products must be designed specifically for vinyl floor coverings.

Proper flooring under cement board.

As long as the subfloor is 3 4 in. It provides a smooth uniform surface to work with. Cement based backer board stabilizes the plywood substrate and provides a flat even surface for tile. Before we go any farther on how to install cement board i am going to talk about a very common mistake most people make.

Cement boards that some in sheets. For best results especially on floors concrete board should be installed at least one day. I would avoid doing this if i were you. Drywall screws spaced every 6 in.

I have not seen anyone try to put vinyl over it. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water. Thick cement board instead of the usual 1 2 in. Tongue and groove material screw the underlayment down right through the vinyl with 1 1 4 in.

The 1 mistake most people make when installing cement board. Cement board commonly sold under trade names such as durock hardiebacker and wonderboard is now the standard underlayment used for ceramic porcelain or stone tile laid with thinset mortar adhesive cement board is used for most floor tile and has all but replaced plywood and drywall backer materials for wall tile applications in wet areas like showers and tub surrounds. Written installation instructions and a. It s typically available in 1 2 in.

1 4 luan plywood is common for use underneath vinyl flooring. This is the industry standard most preferred by construction pros when installing ceramic or porcelain tile backer board comes in four foot by eight foot and three foot by five. Whenever you re laying tile on a wood subfloor you need to first install cement backerboard to prevent leaks and water damage. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides.

Then you attach the cement board with screws. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet. Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. Cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas.

This is a distinct advantage over plywood and drywall. Use under armstrong resilient flooring installed by the residential felt back perimeter bond method. Thick 3 x 5 ft. Cement backer board is for use under tile.

It is very important to first spread thin set on the floor before placing the cement board to the floor.