This is the easiest and cheapest tile option, which in this case is a solid color rectangle of burned clay without any or a drawing. Due to the fact that it absorbs moisture well, it is not recommended to be used in conditions with high humidity, or a selection of materials for stacking with hydrophobic properties is required. Also she’s pretty fragile. Due to similar restrictions, unglazed tiles are used only in the design of walls.
Unlike the product without glaze, this tile has an upper thin vitreous layer that provides ornament, gloss and color. Thanks to it this material has hardness, waterproof, which is indispensable in the conditions of kitchen, bathroom and toilet and even on the garden area when laying paths.
Using different technologies such as single and double firing, extrusion and pressing, combining materials (red and white clay), manufacturers obtain different types of tiles. So, at a single firing the raw material is pressed first, then it is immediately applied to it icing, after which this puff cake is sent to the oven. Pros of this technology: getting a low-porous product and excellent grip of the upper and lower layers. Cons – tile caliber varies from batch to batch. But when carrying out outdoor works it is not essential.
In addition to the tiles itself, there are also decorative elements: curbs, single bas-relief and flat inserts, panels. Not only do they decorate a wall or floor, they also significantly increase the cost of materials and works.
Two-fold roasting is a traditional technology that involves applying glaze on already burned tiles followed by firing. The cost of such products is higher than for single firing. However, this method of production has one undeniable advantage: the layer of glaze is placed very flat — there are no bubbles, shells and cracks on the surface, which is why such tiles are more smooth, even and shiny.
Ceramic tile Formats Floor tiles
are most often single firing, as low porosity and high coating strength are required, while flawless smoothness and not necessary. The size of this tile is most common 30х30, 40х40 and 45х45. Wall tiles can be miniature – 5×5, floppy 10×10, etc. Traditional formats – 20×20, 20×25, 15×25.
Some manufacturers produce and large copies of the format 60×60 cm and even 60×120. But it is impossible to lay such tiles without special equipment manually.
There are very tiny mosaic tiles — 2,5х2,5. They lay out both the walls and the floor, but the work to create mosaics is painstaking and requiring great accuracy.