Tile Over Tile Thinset

Complete adhesive coverage is critical on large tiles 12 in.

Tile over tile thinset.

Tile needs a smooth level surface to be installed on. The modified mortar creates a stronger bond between the surfaces. 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. When laying tile over tile it is best to use a modified thin set.

Then i will mud with thinset and lay tile. This could lead to difficulty getting the new tiles level and fully supported by the new thinset. This helps to prevent tiles from cracking. As you re installing your tiles use a level to make sure the new floor remains even.

You can put new thinset on top of old but only if. The surface of the existing tile should be free of mold and mildew completely level including grout and. Epoxy tile adhesive may bond with almost anything and requires special solvents to remove. Thinset with large amounts of latex added are used with glass tiles which are unable to flex on their own.

So in short you can tile over tile as long as you re working on a fairly sound surface. First clean and then sand the surface of the old tile until it feels rough. Others prefer to use a larger notched trowel 1 2 x 1 2 in to apply the thin set. The big issue is going to be the smoothness.

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. Without a somewhat smooth surface it will be difficult to properly trowel out new thinset. Working in small sections spread the thinset over the existing tile using a notched trowel. Or larger and even more important when you re tiling over tile.

Some installers prefer to flatback each tile with the flat edge of the trowel before applying the tile to the combed thin set. This is a bonding mortar with either a latex or polymer additive. If the substrate and thinset is solid then you can go over the top with new. How to install tile over old thinset grind it down.

If all your talking about is 3 16 then thinset is a good solution. Unlevel floors can eventually cause both layers of tile to crack the following steps are helpful tips when installing tile over tile. However it may be worth noting that you may need to wait a little longer between laying the tile and grouting to allow the thin set to properly cure. You can add extra thinset under your new tiles if needed to ensure they re level.

Ideally tile should be installed directly on top of a surface like cement backerboard which is stable. You can tile over exiting tile with latex modified thinset mortar but the bond might not be as sound as.