Install large-surface tiles professionally

In the past, wall tiles and floor tiles were clearly defined in their maximum size. Over time, then ever larger tiles were introduced. The fact that large-area tiles represent a product that has been increasingly used only in recent years also has technical background when laying. Below you will learn everything you need to know about laying large-area tiles.

Some rules are always valid, others are sometimes broken or revised. This includes the artisan wisdom "large tiles - large room" and "small tiles - small room". Explicitly in small rooms, large areas are particularly effective. They magnify small spaces optically strong. However, in the past few decades not many craftsmen knew this, because there were simply no large-scale tiles. Only with modern tile adhesives was it possible to consistently lay large tiles. Floor tiles with a size of 60 by 60 are therefore no longer a rarity, even measures of wall tiles of 100 by 300 cm, there are tiles with 1 x 3 m.

The special demands on the tile adhesive for large format tiles

In order for such tiles to last long, you need appropriate adhesive, grout and of course an adapted installation technique. Highly flexible tile adhesives are therefore the optimal choice. These tile adhesives are treated with fine plastic granules. This makes the adhesive much more elastic and can compensate for different movements and vibrations. The principle is like an exhaust, which is decoupled by a rubber suspension from the body. If the connection were solid, the exhaust would break permanently. The same effect is achieved by highly flexible tile adhesives for tiles and surfaces.

Technology is also important when laying large format tiles

However, it is important that the tiles lie evenly in a continuous bed of tile adhesive. Therefore, floor tiles and large tiles are laid by the buttering-floating process. First, the tile adhesive is applied to the substrate and, for example, combed longitudinally in the laying direction, so that webs arise in the adhesive. Now glue is applied to the back of the tile, but this time combed with the tooth trowel across the bars on the ground. Subsequently, the tile is pressed with gentle pressure in floating circular movements in the adhesive bed. It is important that you do not force the tile down to the ground.

Tile and expansion joints for large tiles

Of course you also need conventional tile and expansion joints for large format tiles. Depending on the size of the tiles, the expansion gap can vary between 0.5 and 1.5 cm. In rooms with a length of 8 m, the expansion joint should even be at least 2 cm. Even the traditional tile joints are important. Keep in mind that the tiles expand and contract due to temperature differences. If you lay them without joints, there would be tensions and thus tearing and breaking of individual tiles, because the different building materials (tiles, substrate) do not behave the same way. Therefore, the usual joints of tiles should always be grouted with a flexible joint mortar so as not to cause tensions in the first place.

Tips & Tricks

Do not neglect the underground. It must be clean, dry, level and as low in vibration as possible. In addition, it is important to seal the subsoil outdoors and in damp rooms against penetrating water. For this purpose, barrier primers made of liquid plastic are mostly used. However, there are also different properties with different floor areas. On strongly absorbent surfaces, you must apply a primer that regulates and reduces the removal of water from the adhesive. On the other hand, a low and non-absorbent surface requires a bonding agent.

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