Do I need cement board under floor tile?
Cement board (used in tile underlayment) 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 tiled surface to help prevent cracks.Click to see full answer. Correspondingly, do you have to put cement board under tile?In…
Cement board (used in tile underlayment) 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 tiled surface to help prevent cracks.Click to see full answer. Correspondingly, do you have to put cement board under tile?In short, tile and grout are not inherently waterproof. Cement backer board is often used as a tile base on plywood or OSB subfloor. Cement backer board on concrete as a subfloor or underlayment is usually not recommended or needed. In most cases, you can apply tile directly to the concrete.Likewise, can I use cement board for flooring? 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. Ceramic tile laid over cement board is one of the most durable floor or wall surfaces you can install. Herein, how thick should cement board be under tile floor? Cement-fiber, or similarly reinforced, backer board comes in standard 1/4 inch and 1/2 inch thicknesses. If you’re installing backer board over an existing subfloor, 1/4 inch is sufficient. If you’re installing backer board in new construction, attaching it directly to floor joists, opt for 1/2 inch sheets.Do you have to put mortar under backer board?You cannot put a cement backer board over that. You need to put a layer or plywood, minimum 5/8 IIRC, over those boards, then mortar the backer to the plywood. Those 1×8 boards won’t give a solid foundation and will flex. Over time, that will cause tile to pop loose or crack.
