Roof designs are protected not only for tenants but also for the entire building. First of all they have to resist the vagaries of nature - humidity, wind and cold. Each component of the roof - insulation, waterproofing, windscreen, drainage system - has a specific function. Material for roof covering must not only withstand massive attacks on the weather, but also participate in the decoration of the building. Therefore, to him must meet certain requirements. Paramount strength and durability of coatings, as well as ease of installation and ability to use the material in complex designs. Weight of the material determines the need for further strengthening of the structure and foundation. A set of technical characteristics of each type of coating is primarily dependent on the material, which is the feedstock for its production. Today's most popular metal roofing material is metal. Basic properties, determine its relevance - is the exceptional strength and durability. In addition, the consumer is very important characteristic of such a metal roof options, both light weight and ease of installation. The most commonly used metal for decorating roofs is steel. In the market of roofing materials are available plain sheets, wavy corrugated sheets and sheets that mimic traditional tiles. In the individual building additional requirement applies to the relevance of roofing material integral image of construction, a crown which is the roof. This circumstance has caused widespread popularity of new metal roofing materials in the domestic construction market. The main guarantee of long-term operation of such coverage (30-50 years) is the original quality of the metal. For example, metal Ruukki (Finland) made from galvanized steel with thickness of 0.5 mm and, in addition to the zinc layer has a special polymer coating that not only prevent corrosion, but also solves the problem of external design of the roof. Metal roofing Ruukki offers consumers a complete set that includes everything needed for a successful installation. This helps reduce costs by accurately mutual compliance of all elements of roof systems and, hence, saving labor costs. The difference of the polymer coating (the most popular today - Pural) determines the degree of stability of the material to UV, aggressive media and mechanical stress. Manufacturing technology allows us to provide a choice of metal color, wave profile and form elements. Its price ranges from 300-500 rubles per m2. Bitumen is one of the groups of roofing materials are asphalt coating. Oxygen saturation of bitumen improves its initial performance heat resistance and ductility. The presence of modifiers greatly improves the properties of raw materials, affecting the durability of the material, flexibility, heat resistance. However, their use affects its value. Type of reinforcing layer is determined primarily by the strength properties of coatings, it often acts as a glass fiber. Special as resistance to mechanical stress attached fiberglass and polyester. One variety of materials for pitched roofs based on bitumen corrugated sheets are sometimes referred to as "evroshifer" (eg, Ondulin (France)). Their composition is enriched with thermosetting resins, minerals and pigments. They have a little weight, do not require complicated installation. Among their physical and mechanical properties it is worth noting the low water absorption, high biological, chemical and climatic stability. Plasticity of the material along the wave allows you to use it when the device cover a curved roof with a curvature radius of 5 meters. Manufacturers usually offer a guarantee on the material for 15 years, with the defining period of his service in half a century. This material relates to the mid-price range, and its value is about 300 rubles per sheet 0.95 x 2 meters. Another roofing on the basis of bitumen is asphalt shingles. Roof with this material is formed by stacking the individual elements (tiles), whose shape can be different. Mounted soft tile with self-adhesive layer is deposited, or by using special roofing nails. The advantage of coating performance in unit shipments is more easy to install and easy to repair, which amounts to replacing one piece which has broken down. Period of operation during installation properly is 30-50 years. The outer layer of shingles is often made of basalt dressing keeps the shingles from exposure to water and protects against mechanical damage. However, many manufacturers are experimenting with the material of the outer cover in search of new design solutions. For example, a coating of patinated and gilt copper or zinc alloy-titanium tiles Tegola determines not only reliability, but also the status of housing. The cost of such a spectacular decisions, of course, much higher than the cost of tiles with basalt cover, which will be priced in the range of 240-350 rubles per m2. It should be noted that the installation of a roof with shingles requires a solid sheathing, or sheathing of special moisture resistant plywood, which greatly increases the overall cost of the works on arrangement of the roof. Sand and clay That sand and clay used for the production of natural tile. The best known are two kinds of natural tile: ceramic, cement and sand. They are united by longevity (life cover about 100 years), which is achieved through a high resistance to negative environmental impacts. Similar they are also indicators such as low heat and sound conductivity. Common, unfortunately, are also disadvantages: a high total weight of the roof (40-50 kg/m2), which requires additional hardening structural and time-consuming process of laying. Clay is a raw material for ceramic tiles, whose production requires the burning. The resulting material has high strength and frost resistance. In the production of cement-sand tiles using sand, cement and pigments. Square meter of cement-sand tile costs about 300 rubles, while the ceramic is almost twice as expensive. Manufacturers of tiles, which include both foreign and Russian companies (for example, the German-Russian company Braas), take into account the desire of buyers personalize their home and offer a wide range of shapes and shades of coatings. Currently, a wide variety of roofing materials allows the user to select material from any purchasing power. Approach the choice of roofing is recommended on the basis of the required service life of construction, are often critical and aesthetic features of the coating. As the demand distribution, today the preferences of consumers are on the side of the shingles.
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