Laying granite tiles is similar to conventional ceramic tiles, but has its own unique characteristics that you have to take into account. There are differences from cutting to laying granite tiles and slabs. In the following, we will explain step by step the professional laying of granite tiles and slabs.
Important selection criteria for granite tiles and slabs
Before laying natural stone tiles such as granite tiles, it is essential that you familiarize yourself with the manufacturing process. Because there are numerous differences here: chamfered, not chamfered, calibrated and non-calibrated tiles, but also slabs. A tile is between 0.8 and 1.2 cm thick. Above that there are plates. German manufacturers mostly offer calibrated slabs and tiles, but there are also non-calibrated ones. Calibrated panels have tolerances of plus / minus 0.5 mm in length, width and depth. Uncalibrated panels and tiles, however, plus / minus 1 mm in length and width and plus / minus 1.5 mm in thickness.
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The preparation of the substrate must also be adapted to the natural stone tiles
Therefore, calibrated natural stone tiles are definitely suitable for thin-bed installation. Chamfered natural stone tiles and slabs are used when the edges are beveled. In particular with natural stone slabs and tiles that are used as flooring, beveled slabs and tiles should be used. In addition, there are natural stones that shine through as tiles and slabs. Therefore, you always use a white natural stone adhesive. It may even be necessary - similar to glass mosaic tiles - to apply a white primer. You must take all these factors into account, otherwise you will not achieve a clean, professional installation result.
Step-by-step instructions for laying granite tiles
- Granite tiles or slabs
- Granite tile adhesive, white
- possibly reason for detention
- possibly white base
- Grout for natural stone or. Granite tiles
- Joint silicone for natural stone
- Cross spacers
- Wet cutting machine for natural stones
- possibly angle grinder with diamond cutting disc
- Drill (€ 48.00 at Amazon *) with agitator
- Mortar (€ 7.79 at Amazon *) bucket
- Toothed trowel
- Grout board with hard rubber
- Tile sponge or sponge board
- Rubber gloves for grouting
- when laying floor tiles knee pads
- if necessary, joint scraper and / or cutter knife
- Chalk line
- Folding rule
- Silicone syringe
The subsurface must be clean, dry and sufficiently stable. A special primer is recommended for highly absorbent substrates. If the stone tiles or slabs shine through, it can also make sense to prime the entire surface to be glued in white beforehand.
2. Mix the tile adhesive
Now mix the granite or marble tile adhesive according to the manufacturer's instructions. Note that most granite and marble adhesives should mature for around 5 minutes after being mixed for the first time before being stirred again.
3. Lay granite tiles
You can apply the granite tile adhesive in different ways. This depends mainly on the respective conditions. The so-called buttering-floating method is most effective. The tile adhesive is first applied to the floor and ridges are combed into it with the notched trowel. Now apply glue to the granite tiles or slabs and comb it as well. This time, however, the bridges should run perpendicular to those on the floor. Now slide tile to tile. Make sure to keep expansion joints on the outside.
4th. Grouting granite tiles
You can start grouting the granite tiles after three hours at the earliest. As with conventional tiles, apply the grout diagonally to the joint. Make sure that there is no more glue in the joints. You can scrape any glue out of the joints with a cutter knife or a joint scraper. If the grout is set but not yet dry, remove any excess grout with a sponge or sponge board.Tips & Tricks Under no circumstances should you try to cut granite or marble tiles with a conventional tile cutter. You will not like the result. The situation is similar with angle grinders and diamond cutting discs. The main problem here is that you will not be able to cut an exactly straight edge. This method is only suitable for edge areas that will later be covered by a skirting board.
Even cutting granite tiles with a wet cutter is difficult. You should definitely borrow a good quality device. Also make sure you have a high-quality diamond saw blade. Some machines are also suitable for chamfering the granite tiles.
Joints: depending on the size of the tiles, the joints should be between 1 and 3 mm wide. You must not joint-free (crunch). Choose a wider joint width on the south side than on the cold north side.
Pay special attention to the laying pattern. Sort out the tiles beforehand. The entire texture has to be consistent, i.e. color and structure equally.
Granite tiles are usually laid in a staggered 1/3 to 2/3 pattern.