The screed is one of the most important elements in creating a tiled floor. It is the support layer on which the tiles will be laid
and upon which the flatness, stability, and durability of the covering over time depend. A correctly executed screed guarantees
precise installation and reduces the risk of cracking, detachment, or surface irregularities.
What is the purpose of the tile screed?
The purpose of the screed is to create a uniform and resistant base, distribute loads, and accommodate any underlying systems,
such as underfloor heating or technical conduits. It must ensure a flat surface, with correct slopes where necessary, and offer a suitable
substrate for tile adhesion. The quality of the screed directly affects the final result of the floor, regardless of the material chosen.
Types of screed
There are different types of screed to choose from based on the context and intended use. Traditional cement screed is the most common
and is made with a mixture of cement, sand, and water. Pre-mixed screeds offer more controlled working times and consistent performance.
In cases where rapid installation of the covering is required, fast-drying screeds are used, while specific screeds capable of withstanding
thermal expansion are necessary in the presence of underfloor heating.
Preparation and execution
Before spreading the screed, the substrate must be clean, stable, and free of dust or residues. It is essential to define the correct thickness,
which generally varies between 4 and 6 cm, and to position any separation or insulation layers. The mixture must be carefully spread and leveled,
following the reference heights to obtain a perfectly flat surface. With traditional screeds, it is important to respect drying times, avoiding laying
tiles before the residual moisture is compatible with the chosen covering.
Drying times and checks
The curing time of the screed depends on the type used and the environmental conditions. A traditional cement screed requires several weeks
before being completely dry, while fast-drying solutions significantly reduce waiting times. Before laying tiles, it is always advisable to check
the flatness and the degree of residual moisture to avoid future problems with adhesion or deformation.
A solid base for a lasting installation
The screed is the foundation upon which the entire floor is built: correct execution facilitates installation and enhances the chosen material. The variety of tiles
and solutions for tiled floors handled by Ceramiche Dordini allows for the selection of the most suitable covering based on the type of screed and
the characteristics of the environment, contributing to a stable, uniform, and long-lasting final result.
