Tile Over Tile Thinset

Thinset with small amounts of latex added are primarily used for large format tiles and stone tiles to help absorb flex from floors and walls.

Tile over tile thinset.

Without a somewhat smooth surface it will be difficult to properly trowel out new thinset. Thinset over thinset robert thinset will adhere to thinset just fine. Ideally tile should be installed directly on top of a surface like cement backerboard which is stable. If this is not a good idea i can just pack the thinset thicker in that corner at the time that i lay the tile.

First clean and then sand the surface of the old tile until it feels rough. This helps to prevent tiles from cracking. Working in small sections spread the thinset over the existing tile using a notched trowel. Thinset with large amounts of latex added are used with glass tiles which are unable to flex on their own.

The surface of the existing tile should be free of mold and mildew completely level including grout and. Then i will mud with thinset and lay tile. So in short you can tile over tile as long as you re working on a fairly sound surface. The big issue is going to be the smoothness.

You can put new thinset on top of old but only if. This could lead to difficulty getting the new tiles level and fully supported by the new thinset. Second apply a very thin coat of thin set mortar filling in the current grout lines. Tile needs a smooth level surface to be installed on.

Or larger and even more important when you re tiling over tile. If the substrate and thinset is solid then you can go over the top with new. Some installers prefer to flatback each tile with the flat edge of the trowel before applying the tile to the combed thin set. You can add extra thinset under your new tiles if needed to ensure they re level.

You can tile over exiting tile with latex modified thinset mortar but the bond might not be as sound as. Position your tiles according to the layout you choose. The modified mortar creates a stronger bond between the surfaces. When laying tile over tile it is best to use a modified thin set.

Others prefer to use a larger notched trowel 1 2 x 1 2 in to apply the thin set. Epoxy tile adhesive may bond with almost anything and requires special solvents to remove. Complete adhesive coverage is critical on large tiles 12 in. Unlevel floors can eventually cause both layers of tile to crack the following steps are helpful tips when installing tile over tile.

How to install tile over old thinset grind it down. As you re installing your tiles use a level to make sure the new floor remains even.