Lay tile on tile

Lay tile on tile: surface

The bathroom is one of the most private rooms in the apartment. It has a clear defined function and serves the cleanliness and body caree, but next to it should also offer relaxation: "Wellness" is the current keyword.

Of course, also for the well-being, that the Interior design to personal taste equivalent.

The bathroom almost always includes tiles. They too are subject to trends and fashions, and sometimes they have to also renewed as part of a renovation become. Many builders shy away from the effort to remove the old tiles.

But that's not necessary either: You can decide to paint the tiles, but you can also simply lay new tiles on the old one. This always works when the old one Tile is still perfectly firmly attached to the wall and the tiles are laid cavity free.

With highly plastic-coated cement tile adhesives this task is quite easy to handle, on the wall you can also special dispersion tile adhesiveInsert r. How you do this, we show you here.

Material and tools

  • Alkaline cleaner or starter
  • primer
  • Highly tempered, flexible tile adhesive
  • Possibly. Dispersion tile adhesive
  • Highly flexible grout
  • Possibly. Cement remover
  • Rubber or mallet
  • spatula
  • spirit level
  • plummet
  • tile crosses
  • trowel
  • trowel
  • Notched trowel (toothing suitable for tile format)
  • Possibly. Tiles corners
  • rubber joints
  • Sponge or sponge board
  • Cloth and bucket for cleaning

Prepare underground

Lay tile on tile: tiles

Annexes such as towel hooks or consoles have been removed, the fittings dismantled and replaced with construction plugs. Now, the tile surface is cleaned thoroughly with a teat. Wear gloves!

The basis for the new tile situation must be one solid, firm surface his. Play it safe and check all joints and tiles for tightness.

These are the tiles with a small rubber mallet or mallet knocked off. If there is a noticeable sound difference in individual tiles, they are probably hollow or have partially detached from the ground.

Such loose tiles must be re-glued. You can also remove them completely and adjust the surface with mortar. In addition, will be loose or crumbling joints removed and repaired, dismantled fittings (turn off the water beforehand!) and silicone joints.

If a lot of tiles are hollow or loose, then you should consider here if you do not want them completely remove old surface, This can be much faster in this situation than re-glue numerous tiles.

However, if everything is in order and the work surface is clear of any loose material, it is thoroughly cleaned with an alkaline cleaner or with a primer. These Cleaners degrease the surface and free it of all separating substanceswhich could hinder the liability of further construction. Anlauger you get in the paint department of the hardware store.

Prime old tiles and level off

Lay tile on tile: tile

In addition to the primer or instead you can fill the old tiles. To do this, apply highly flexible tile adhesive to the smoothing trowel and pull it thinly onto the old surface. The joints are filled.

Before the new tiles can be glued, the surface needs a special primer, This should be suitable for "non-absorbent surfaces" and especially for "tile on tile". Applied with a roller, a uniform film results, which ensures the adhesion between the old covering and the tile adhesive.

Observe exactly the manufacturer's instructions for processing. Because this Painting forms the basis for laying the new tiles and resulting errors are not correctable later.

Alternatively or additionally, you can fill the old tiles with a thin layer of highly flexible tile mortar. This so-called Scratch filling fills the joints of the old flooring, closes dowel holes and prevents the wall from slipping freshly laid tiles. It must set for about 2 to 3 hours until it is dry to the touch.

In this operation, you can also compensate for unevenness by unevenly laid tiles. If you get thicker layers of adhesive, leave them To be on the safe side, cure for about 24 hours.

By the way: In the past, the glaze of the old tiles was often carefully pecked with a sharp little tile hammer to improve the adhesion of the new layer structure. Thanks to the modern adhesives and primers you can do without this operation.

Apply flexible tile adhesive

Lay tile on tile: tiles

If primer and / or scratch coat are dry to the touch, the tile adhesive can be applied in sections with the smoothing trowel or the smooth side of the notched trowel.

The surface is prepared, you have a flat, adhesive surface in front of you. Now the tile adhesive can be mixed and applied. Zemenbasierter Mortar is mixed according to manufacturer's instructions with water, Dispersion adhesive can be used directly from the bucket.

Now with the trowel something Tile adhesive applied to a trowel and a uniform layer applied. The smooth side of the notched trowel can also be used for this. This is pretty good to see in the photo.

First apply so much glue that you can lay a series of tiles. With something more You can apply more routine later, but always have to keep in mind the so-called open time specified by the manufacturer, within which tiles can be inserted.

Lay tile on tile: tiles

The adhesive is combed through with the notched trowel at 45°. This achieves a uniform distribution and a uniform layer thickness.

Then the applied Tile adhesive combed with the notched trowelso that the entire surface receives a uniform image with the tooth shape of the notched trowel.

In doing so, hold the Trowel always at the same angle of 45°. On the one hand, this achieves a very uniform distribution of the tile adhesive, and on the other hand, at this angle, you achieve the adhesive thickness and structure that matches the tile format.

Condition is that you use a Zahspachtel with the right teeth. The larger the tiles, the thicker the adhesive layer must be. You can follow this small table:

Edge length of the tilerecommended tooth size
up to 50 mm3 mm
50 mm to 100 mm4 mm
101 mm to 200 mm6 mm
201 mm to 250 mm8 mm
251 mm to 500 mm10 mm

Laying tiles

Lay tile on tile: adhesive

The classic method of aligning the first row is to draw a horizontal reference line, past it with a strip of masking tape, apply glue and peel off the tape. Then the row is aligned with the glue edge. With a cross-line laser, however, things are much faster.

When laying the tiles is especially the Alignment and the distance of the tiles to each other important. What needs to be considered in terms of alignment and the overall visual impression, explains our laying plan for tiles.

If you lay tiles on tiles, another aspect is added: The joints of the old and the new flooring should not be exactly on top of each other, if possible. Tile coverings are very stable in themselves, this Stability is due to staggered joints but still increased.

Often this question is already clarified by easy different tile formats - here then arises automatically an offset between the joints of the old coating and those of the new coating. If old and new tiles are the same size, you should create the surface accordingly.

Even a border can make sure that at least one Part of the area is an offset results.

It is also important that the Tile just sitting on the wall and the distances between the tiles are as even as possible. Therefore, a spirit level, a solder and tile crosses should be used.

Lay tile on tile: adhesive

The tiles are laid in the combed adhesive bed. For this one puts each one straight on and then presses them full in the glue.

Very helpful is also a Cross Line Laser, His laser cross helps with the exact horizontal and vertical alignment and the handling with the spirit level is eliminated.

Another aid is Tiles corners, For their use, one first places the tiles on the far left and the far right in a row Tile corners open and stretched in between an elastic cord. Along it you align the complete row.

Tile crosses determine the distance of the tiles. If they are used, as shown in the picture, that is not laid flat in a Kreuzfuge, but only with a "leg" stuck in the joint, then let it remove again and use again.

Lay tile on tile: tiles

Using both hands makes it easier to apply pressure evenly and to produce a consistently flat surface.

But they should not be removed until the Tile adhesive slightly tightened and the tile can not slip on its own.

The insertion of the tiles themselves is not difficult. Put each one straight on and squeeze into the adhesive bed - no adhesive should swell on the sidebut the tile must get as full contact with the glue as possible. For the previously laid tiles, adjust the distance with the joint crosses.

If the joint pattern is not completely consistent, you can rework it without tiling. Here you should rely on his good eye.

Important: In between, take a few steps back and forth - then you will notice irregularities rather than being close to the wall.

Tile grouting

Lay tile on tile: adhesive

If you put the crosses in the joints with only one of the legs, you can simply pull them out before grouting and reuse them later.

When the entire surface is covered and the adhesive has tightened slightly, pull the crosshairs out again. Then the joints with a suitable tool, such as a wooden scratched out at least so far that no glue protrudes to the tile surface - He would later be seen in the fugue.

Now he has to Cure adhesive - The corresponding curing time can be found on the packaging. If the glue is firm, you can use the Tile grouting.

Now the Grout mortar mixed according to manufacturer's instructions and processed after a short ripening period. To do this, put it on and wipe it diagonally with a rubber spatula or sponge rubber in the joints. On the ground you can do that Pour grout also in portions and then wipe it off.

Attention: You should now enter a newly laid floor covering only very carefully and, above all, do not make any sliding movements! This could solve tiles. The best way to move in a kind of stork walk, where you always put your feet just from above.

If the grout loses its moist shine and becomes dull, it begins to bind. Now you can do that Cover with a damp sponge or sponge board Wash. To do this, wipe diagonally across the joints and smooth out.

But be sure to take it with you do not remove any mortar from the jointsbut just smooth the joints. Loosen the grout, then he is not yet strong enough.

At the same time, you are already cleaning the tiles during this operation. You will not achieve a completely clean surface, because it It is more important that the joints remain intact, The remaining mortar you can after the Wash off any further hardnesses as far as possible and finally polish off the last remains with a dry cloth.

If you can still see traces of mortar, you can use them with one Cement fog remover chemically remove.

The new tile floor is finished - that he lies on the old tiles, one does not look at him. Now you just have to do that Reinstall fittings and other items and re-apply the silicone joints. For details, see Renew silicone joints

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Video Board: How to tile over existing tiles with TAL Tile To Tile