Tile Floor Not Flat

I notice that the corridor tiles were set on top of the old tiles which leveled up the flooring to 1 1 4 inch.

Tile floor not flat.

Lippage can be affected by a substrate not being properly prepared so it is flat. According to wiktionary lippage is an uneven surface of a floor that occurs when stone or tiles are not laid to a uniform level if you look at the image above notice how some tiles seem higher than others. If the underlayment isn t in good shape put a 1 4 or 1 2 in. Cement board underneath the tile to build it up.

But you said that it is not a good idea. Tile over existing tile floor be sure to break or create a rough surface so the adhesive created proper bonding between both surfaces. A stiff base will also prevent the tile from cracking. Natalia baran istock gettyimages how to fix a bad subfloor.

I was going to do it with siroco over the base floor. With only 24 hours left until the hardwood floor guys were showing up to install our new floors we rented a cement grinder to get rid of the adhesive on the floor. Tile over hardwood flooring this is not the best option and one very common mistake. It can also be perceived as excessive lippage if seen in the type of lighting conditions that accentuate lippage due to shadows.

It is daltile kimona silk 12x12. So the tiles end up not being flat to each other but it doesn t seem possible to correct this as if i squash down on the one side the other side pops up. The substrate for tiles shorter than 15 inches must be so flat that it varies no more than 1 16 inch per foot according to the ceramic tile education foundation. If possible remove the tiles or at least be sure to create that rough surface.

Most floor tile is adhered to the subfloor or underlayment with cement based thinset mortar. So in order to lay the tiles in the bedroom i need to raise the floor level by at least 3 4 inches. The tile planks don t form a flat surface. That s an extreme case of lippage.

I butter the back of each tile but scrape off any excess adhesive and put the tile on wall and twist it a few times holding opposite corners. We are building a custom home and the tile was put down this week. Vinyl tile is a good undelayment if it isn t damaged. It has a lip at every corner and is not laid flat at all.

If possible don t do it. The builder and tile installer said with square edged tile you cannot expect a flat floor. A well gauged tile manufactured within standards on a properly prepared substrate should not have lippage that can easily be felt.