Question: Do You Put Cement Board Under Bathtub?

Should toilet sit on top of tile?

The toilet flange needs to be on top of the finished floor.

Meaning the bottom edge of the flange needs to be on the same plane as the toilet.

So if your toilet sits on the tile, the flange needs to be on top of the tile too.

The spacing of the toilet exit “horn” and sealing surface is designed for this height..

Do you put flooring under bathtub?

In new construction, the tub is often installed before the walls, so there is no finished floor underneath! Installing the tub after the floor means also that they have to be more careful in not messing up the soft vinal – scratches, gouges, etc.

Should you put cement board under a tub?

You don’t need any cement board under the tub. It is far more important to have a sturdy layer of ply under the tub.

How do you install cement board around a bathtub?

The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. Apply it to the wall with the bottom edge about 1/4 in. above the lip of the tub. Then apply a generous amount of thin-set to the bottom bathtub tile and position it 1/8 in.

What kind of cement goes under tub?

Both regular thinset mortar and floor leveling compound are suitable. A series of strategically placed piles is easier to control than a full bed, and it provides comparable support for the tub.

Can you use backer board on concrete?

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. … One solution is to nail cement backer board CBUs over the drywall, tape the seams, and then grout over the cement backer board.