Proper Flooring Under Cement Board

Written installation instructions and a.

Proper flooring under cement board.

Thick 3 x 5 ft. Its made from cement and sand and is reinforced by fiberglass mats on both sides so it s impervious to water. Fiber reinforced gypsum underlayment fiber cement board and cementitious backerboard these products must be designed specifically for vinyl floor coverings. Before we go any farther on how to install cement board i am going to talk about a very common mistake most people make.

1 4 luan plywood is common for use underneath vinyl flooring. 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. Use under armstrong resilient flooring installed by the residential felt back perimeter bond method.

Cement based backer board stabilizes the plywood substrate and provides a flat even surface for tile. I would avoid doing this if i were you. It provides a smooth uniform surface to work with. Cement boards that some in sheets.

As long as the subfloor is 3 4 in. 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. I have not seen anyone try to put vinyl over it. The primary benefit of cement board is that it doesn t break down or expand or warp if it gets wet.

This is a distinct advantage over plywood and drywall. It s available in sheets of many sizes with 3 foot by 5 foot sheets being the most common. Then you attach the cement board with screws. Cement board is a type of underlayment that is now standard for most tile installations but particularly for floor tile.

Cement board also provides an additional layer over a plywood or particleboard subfloor adding stiffness to the tile. Vinyl flooring glued over 1 4 in. Cement backerboard is a thin layer of concrete with fiberglass mesh on both sides. It s typically available in 1 2 in.

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. The 1 mistake most people make when installing cement board. Drywall screws spaced every 6 in.

Cement board is the most durable trouble free tile backer for tub surrounds showers floors and all other wet areas.