Question: Can You Use 1/4 Inch Cement Board On Floors?

What thickness cement board should I use?

Half-inch cement backer board is ideal for most tiling jobs, including walls, floors, countertops, and ceilings.

For flooring, the backer board should be installed over a 5/8-inch thick OSB or plywood base..

Can you floor level on cement board?

A self leveling compound can be applied to most types of subfloor materials. You can apply self leveling compound to plywood, osb, concrete, cement board, hardibacker and many other types of subfloor materials. You can also use self leveling compounds when installing tile over top of an existing tile installation.

Do I need vapor barrier behind Hardibacker?

You need to install a vapor barrier to the studs at the very least, and you must alway mud and tape the seams with fiberglass cement backerboard tape. Backerboard is water-permeable, and will not stop moisture from entering the wall cavity.

Do you need to put a vapor barrier behind cement board?

Their online instructions/diagrams show no use of a vapor barrier. You should, so that any moisture that gets behind the cement board runs into the tub or shower instead of into your wall cavity (causing rot or mold/mildew).

Should you put a vapor barrier behind cement board?

You still need a vapor barrier with cement board, although in this case the barrier can go behind the board. Cement board is heavy enough and breathable enough to take the moisture without a problem. By having the vapor barrier behind the cement board you stop the moisture going further into the wall.

Does it matter which side of Hardibacker faces out?

Which side goes up, smooth or rough? Either is acceptable, but we recommend that the smooth side with the nailing pattern of every 8″ on center go up. What subfloor should HardieBacker® cement board be installed over?

Which side of cement board goes up?

Cement board has a smooth side and a rough side. Face the rough side out if you will be using thin-set mortar adhesive to install the tile but the smooth side out if you will be using latex mastic.

Can I level a floor with thinset?

Thinset mortar is a type of cement used for the adherence of tiles and flooring to substrate, or subfloor materials. … You can also use thinset mortar to level out an uneven cement floor or fill small holes in the floor without installing tile.

What kind of Thinset goes under cement board?

Use thin-set mortar when installing cement backerboard. Thin-set dries slowly, allowing you to fix and readjust backerboard sheets as needed. With the smooth side of a 1/4-inch notched trowel, spread enough mortar for one sheet.

Do you have to tape cement board before tiling?

If you are going to tile over the cement board, you should tape the seams. This should not be that difficult. Pack in thinset, lay on the tape, and flat-knife to get it set in. … If you just want to leave the corners untreated that will probably be fine, because that seam won’t split the center of a tile.

Can you nail through floor leveler?

You can nail through a thin layer of leveling but you may need to select slightly longer thanil than usual to make sure you get a good bite in the wood. Wood floors can usually accomodate some unevenness in the subfloor (especially pitts as opposed to peaks) leveling is not as critical as it would be for vinyl.

Do you have to put Thinset between subfloor and cement board?

Thinset is absolutely required beneath backer-board on a floor. Also, backer-board provides no structural strength at all. You can not install it directly over a 1x subfloor; that is way too thin and will deflect.

Can you use 1/4 Hardibacker floors?

For flooring, typically one uses the 1/4″ board. The product does nothing to add strength to the floor, so only use the 1/2″ if the additional height is needed. 1/2″ is used generally for walls. “Women and cats will do as they please, and men and dogs should relax and get used to the idea.”

Do you have to put Thinset under Hardibacker?

You do need the thinset under the backerboard, you do need the 1/8″ gaps between the sheets (and 1/4″ around the perimeter) and you do need the tape and thinset on the seams. If your tilesetter refuses to correct his mistakes, ask him to leave, and be firm.