The first thing to pay attention to when determining the thickness of the tile adhesive layer is the size of the tile itself. The larger it is, the more weight, that is, more glue is required for a reliable hitch:
- tile size up to 100 mm – adhesive thickness 2-3 mm;
- tile size from 100 to 150 mm requires the application of a layer of glue 3-4 mm thick;
- from 150 to 200 mm – 4–5 mm;
- from 200 to 250 mm – 5–6 mm;
- from 250 to 300 mm – 6–7 mm;
- if the dimensions of the tiles exceed 400 mm and reach large dimensions of 600 mm, then the layer of glue should be 7-10 mm.
In addition, you should pay attention to the glue itself. If the installation is carried out on synthetic types of adhesives, for example, a dispersive one-component or epoxy composition with a catalyst, you can make the layer one to two millimeters thinner. The use of cement types of adhesives, on the contrary, requires an increase in layer thickness..
Another very important point is where the tiles are laid. For the wall, the adhesive layer will be thinner, but the floor tiles can be laid on a thicker layer.
Important! The minimum thickness of the adhesive, even for small tiles, should not be less than 2 mm.
The maximum thickness is more difficult. Experts note that for walls this indicator should not exceed 10 mm, and for floors – 15–20 mm. In the case of porcelain stoneware, which is laid on the floor, you can increase the thickness of the adhesive to 22 mm, but not more. Too thick a layer will not help improve the grip; on the contrary, it will make it worse. In addition, it will lead to an increase in the consumption of glue, and this is an additional cost.
Another point that should not be forgotten when laying tiles is the condition of the surface. If it is perfectly smooth, leveled, the tile lies, for example, on a plasterboard wall or a magnesite floor, then the glue layer can be minimized. If there are irregularities on the surface, they will have to be masked by increasing the thickness of the adhesive.
Important! Don’t skimp on the primer! Before laying tiles, be sure to use a special deep penetration compound for better adhesion..
The ideal tool for applying tile adhesive is a notched trowel. It is the length of its teeth that will allow you to clearly control the thickness of the adhesive. For synthetic adhesives and small tiles, you can, for example, choose a trowel with a 2–4 mm notch. And for cement mortar, a tool with teeth of at least 4 mm is required..
Important! Do not allow the appearance of voids – the glue is applied evenly over the entire surface.
Optimally selected thickness of the adhesive composition will increase the service life of the tile, protect it from chips, “coiling” and cracks. Therefore, do not neglect our advice, apply a layer of glue that will match the thickness of the tile and the surface condition.
when installing tiles? Is there a specific guideline or ratio that needs to be followed for different tile sizes and materials? Additionally, are there any factors such as surface condition or weight of the tiles that may affect the thickness of the adhesive?
What is the ideal thickness for applying tile adhesive?