Installation

Installation

The choice of the best way to install natural or artificial stone tiles depends on their dimensional stability and resistance to water and temperature variations.

 

 

 

 

Stone materials could considerably warp away from the adhesive and mortar on long exposure to humidity. Besides, they could get stained and/or show off unaesthetic efflorescences due to the presence of water rising from the soil, the cut stone or the adhesive.

HOW TO CHOOSE THE RIGHT MATERIAL
It is important to choose the proper stone and respective finish for your project and lifestyle in terms of features, material and its compatibility to the features of the installation location. That’s why it is always recommendable to consult and entrust the stone laying to professionals.

HUMIDITY
The choice of the proper stone to be laid is connected to a good knowledge of the difference among the most suitable materials on the strength of their sensitivity to water. MAPEI – one of the most important manufacturers in the world within the building  chemistry industry -  planned a specific system in order to classify stone materials and test the degree of water  resistance of stone slabs. It is a simulation of the humid conditions on the screed (usually made of cement, sand mortar or traditional adhesive) through the application of moist felts on the back of the slabs. Digital sensors are then able to register any further slab warping due to the humidity.

HOW TO CHOOSE THE ADHESIVE
In addition to the selection of the right type of stone material on the strength of its sensitivity to water, it is important to choose the proper adhesive taking into account the size of the slab and the kind of support and covering. It is also important to plan several on-site inspections in quarries and showrooms in order to check the available materials, their features and technical properties as well as their processing techniques and finishes.

FLOORING INSTALLATION
Floor laying must be applied first of all on perfectly level surfaces. Slabs must be properly seasoned (about one week for any centimeter of thickness), smooth, without splits and not humid in order to prevent any further collapse and crack in the course of time. Any oily residue must be removed before the installation and – especially in case of new buildings – a sufficient number of expansion joints needs to be ensured.
In the event of laying on rough surfaces, which must be levelled several times, mortar made of quarry or river sand can be used, mixed with grey or white cement (layer must be at least 5-6 cm thick). Lime and sea sand are not recommended.

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