Terrazzo has been a popular cast floor covering since the times of ancient Greece and Rome. The floors found their way into Central Europe when churches started to be built.
The traditional way
VIA terrazzo tiles are made in the traditional way, just like the earlier cast models found in churches and historic buildings: from a blend of dyed cement and coloured aggregates, without synthetic resins or other artificial materials. The mixture is pressed and given its typical surface appearance through subsequent sanding.
White, red, grey and black are the four typical terrazzo colours. VIA makes terrazzo tiles in these four colours using a 20 x 20 cm format.
Due to the characteristic grain in the tiles, individual tile patterns are not completely identical – a feature of terrazzo tiles.
The terrazzo tiles are sanded with 120- grain sanding pads. This creates a surface in line with the R9 classification. During this process, tiny individual grains may be pulled out at the edge of the tiles, which can lead to slight indentations in the stone or uneven edges.
Tiles are sensitive
VIA terrazzo tiles are dried and porous. They are sensitive to dirt and moisture until they have been impregnated.
As all floors made from natural materials, terrazzo tiles are sensitive to acid, just like other natural stone such as marble. Hence, they should not be treated with aggressive, acidic detergents. Acidic food (e.g. wine) should be wiped off immediately.
The installation of VIA terrazzo tiles is not difficult, but care should be taken to ensure that you can enjoy your tiles for many years to come. You should be aware of a few things:
Terrazzo tiles are laid using the buttering/floating method in a medium bed with VIA Tile Adhesive and the smallest grout joint width (seamless). As a result, it takes approx. one hour to install one square metre.
As joint sealer we recommend the traditional mix of trass cement and quartz sand (grain size 0.1 to 0.3 mm). These are common building materials. Ready-made sealants should not be used as they contain synthetic particles, which may enter the porous tiles leaving behind a grey film.
The tiles are impregnated after grouting. You can either use VIA Tile Oil or VIA Mineral Impregnating Sealer for this purpose.
Impregnation with the self-hardening VIA Tile Oil should be carried out when the floor has fully dried after grouting, normally after approx. one week. There should be no residual moisture in the floor. It is therefore recommended not to clean the floor with water before impregnation as otherwise the oil cannot penetrate the pores in the tiles.
The water glass-based VIA Mineral Impregnating Sealer silicifies the surface of the tiles. Two coats can be applied cross-wise on the second day after grouting, which is an advantage when dealing with time-critical projects.
Please read the relevant data sheet for detailed information on how to impregnate with VIA Tile Oil or VIA Mineral Impregnating Sealer.
It is essential and indispensable to impregnate terrazzo tiles. The tiles only have the necessary protection once they are impregnated. Have a look at our VIA installation video and the VIA installation instructions on the VIA website.
Traditionally, terrazzo tiles have always been cleaned with soft soap. Due to its lipid-replenishing properties, VIA Soft Soap is the ideal floor-care product and its use produces a beautiful patina over time. Larger stains can, for example, be removed with a "Glitzi" sponge and ATA (detergent) or with a so-called "Putzstein" scrubber.
The tiles are given additional lustre when treated with diamond polishing pads. During this process, polishing pads with different grains are used one after the other.