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The roof of a natural ceramic tiles

The term " natural " today used for natural ceramic tiles , the well-known people from the time when they have learned to bake pots, as well as for cement-sand, which appeared in the last century.

The roof of a natural ceramic tiles
Technology The technology of manufacture of ceramic tiles is constantly being improved, but its foundation is still composed of three " classic " stages: preparation of raw materials, forming and baking crock. The starting material - ceramic (pottery) clay - is stirred until a homogeneous mass is added thereto and plasticizers to facilitate molding. Tile is made belt and stamping techniques. In the first case, a tape, which is then cut into individual tiles, the second - tile tile pressed into metal molds. Obtained one way or another semi-finished baked at a temperature of about 1000 & deg; C.

The technology of manufacture of cement-sand tile is somewhat simpler. First of cement, silica sand, water and coloring pigment is formed semi-dry mixture; from it banded tiles made raw, the edges of which are rounded stamping. Then, during the day the material is dried at 60 & deg; C, after which a further 28 days, kept in stock. During this time, the cement-sand tile is gaining 70% strength, and the missing interest " gets " after mounting, under the influence of water.

Get a really high-quality full   tile is very difficult. The most important characteristic of this material- high density, porosity value is the opposite. With a large number of long water-resistant tiles and reduced its hardiness. To ensure low porosity ceramic tiles, provides for special processing measures: use of clay with a low content of impurities (burning during firing, the latter may form shards not only the pores but also the whole of the cavity) or one of two ways compacted its upper layer. So, on the surface of the shard is applied special clays - engobes (from the French. Engobe), which upon firing partly fused to form a dense layer or coating (from m. Glass) - vitreous coating is also attached when heated to 1000 & deg; C.

On ceramic tile adversely affect calcareous inclusion - under the influence of precipitation lime extinguished, while significantly detract from the appearance of the material. As for the cement-sand tiles, the moist raw material is well compacted at the box office. In addition, the molded, but also the crude material is further applied special paint, penetrating the top layer of tiles and strengthens it.

The roof of a natural ceramic tiles
Sealed Of the many forms of tiles, invented for its long history, there are three main: flat (" beaver tail "), grooved (ancient Tatar, " the monk-nun ") and a wavy (Dutch). The lack of coverage of the installed tiles " beaver tail " or " the monk-nun ", - the gap through which the snow falls of the roof structure, and the oblique rain - water. Usually they poured lime mortar, disrupts the natural ventilation of the roof and increases the overall weight of the roof.

Such lack lacks grooves or lock (wavy), tiles. With slots located on the underside of the material, tile tile snap, " closing of the castle ". Speakers ridges create a complex maze through which precipitation can no longer get into the roof space. Tiles made in a band has only vertical grooves; stamped material - both vertical and horizontal. In the first case, the installation can be adjusted by the amount of overlap tile series and adjust geometric errors of the roof, the second this is not possible. Taking the form of a material should be considered architectural design of the roof, for example, curved surfaces better pave grooved tiles or " beaver tail ".

Safety and comfort
Ceramic and cement-sand tile practically does not age, is resistant to UV radiation, good resistance to aggressive environments and can withstand significant loads, and due to the large mass and small size tiles roof made of these materials are not afraid of even the strongest hurricanes. Ceramic Tile is dangerous only large hail. These properties determine the lifespan of the roof of natural tile - more than 100 years.

The roof of natural tile is slowly heated and slowly cools down, so the summer nights in the roof space constantly circulates warm air, which prevents condensation, thus preserving truss roof. Due trehmillimetrovogo gap formed T- slot locks, roof tile does not deform under the influence of snow and strong winds, and " breathing ", providing a favorable microclimate in the house. Also tile absorbs noise, which is especially important for homes with a loft. Finally, its environmental friendliness has become proverbial.

Aesthetic characteristics
Red, brown, terra cotta, ocher - this natural color ceramic tile obliged to iron oxide, which is part of the clay material. Over time, the material is dark, sometimes covered with malachite patina.

Engobing tile allows you to expand the color range of the material, with the addition of a new color it acquires a special luster. With improvements traditional engobe, tiles acquired crystal shine and become more resistant to weathering.

Decorative ceramic tiles attached to a variety of (transparent, opaque, glossy, matte) glaze in which administered from 2 to 15% of cobalt, chromium, manganese. There are dozens of color options is produced speckled, spotted, antique tiles; often placed on the roof of the material in various shades. However, contact with the tiles should be very careful - hidden under a layer of glaze ordinary baked clay.

In colors of cement-sand tile practically does not yield a ceramic. The pigment is added during production, so the material is stain on the depth and color stability under all circumstances.

Installation
Usually, manufacturers recommend the use of tiles on pitched roofs (22-60). At a lower slope (10 to 22) need more insulation, for example, the device of the roof of the lower facing materials.

By furring tiles attached with lugs, screws and clamps protivovetrovyh. When a slope of more than 50 material further fixed clamps. In other words, modern natural tiles used on roofs of any complexity. Her installation much easier a half, side, ridge, eaves tile. If you need an element of non-standard sizes, the material can be cut with diamond disks.

It is believed that due to the large weight (weight of ceramic roof is 60 kg/m2, the weight of cement and sand - 40 kg/m2) for the tile you need a massive truss. However, if the house is built on a professional execution of the project, due to the rational design of the roof and technically sound is determined by calculating the optimum consumption of lumber. Practice shows that compared with Truss intended for metal materials, it is increased by only 15-20%. This waste of leather tiles are small, besides the planned repair of the roof is not required for several decades. The tile coating, served their age, needs no complex disposal: broken pottery will return to earth - from sand-cement fragments get a good rubble.

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