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Once you have laid your tiles, it is time to put down your joints. These ensure proper placement of your tiles and prevent your tiles from moving and cracking. Many colors of mortar currently exist for your joints: so you can give a very personalized style to your home!

The different types of tile joints

To consolidate the installation of your tiles, two types of joints exist:

  • Mortar joints: these are the joints that tie the tiles of your tile between them. The material used for these joints is called grouting mortar. This mortar consists of cement, lime and sand. It can be pigmented according to your desires.
  • Expansion jointsThey are essential when you tile a large surface. Expansion joints are considered necessary for areas of more than 40m2 (or more than 36m2 if heated underfloor). Expansion joints prevent your soil from moving. They must be at least 6mm wide.

Lay tile joints

The installation of tile joints depends on the type of joint.

For mortar joints, you must first mix the mortar carefully following the instructions on the packaging (the quality and durability of your work!). Then put the mortar on the tile with a trowel, smooth it well and fill the space between the tiles with a rubber squeegee. You can then smooth the joints with the squeegee or with your fingers. Clean your tiles thoroughly with a damp sponge.

Laying the expansion joint is more complex and requires some know-how. To protect your tile, it must be stretched to the screed and consist of a compressible material covered with a flexible joint.

To reduce the thickness of your tile joints, you can opt for seamless tile.

Video Instruction: Tile joints and Corners