Aluminum has a number of distinguishing features and properties that give it comparative advantages over other materials and make it the ideal material for building applications plistes. Some of these features is the ratio of strength to weight, safety, durability, flexibility in design, thermal insulation characteristics etc. In more detail:

The ratio of strength to weight

The great value of ratio of aluminium to withstand its weight, is one of the major benefits of using in the construction industry. The density of aluminum is 2.7, which means three times less than the density of steel. With proper krammatopoiisi, can achieve the desired limits of the mechanical characteristics required by each specific application. Aluminum components by comparison, offer great strength and stiffness, travellers are particularly suitable for applications such as door and window frames. The stiffness of the material ensures that while are thin, aluminum boxes remain firmly under normal loads. This is particularly useful in high buildings, where stability of facades, curtain walls and Windows.

Aluminium facades have a constantly growing use for building coverage. Such facades enhance the appearance of buildings and increase their strength. The great strength of aluminum in relation to its weight, is one of the qualities that makes it particularly suitable for coating applications. In addition, the small weight of the material, allows for easy editing of the site, thus reducing the cost of transportation of finished products.

The panels are manufactured from aluminum sheets with specific weight 2 to 3 Kg/m2 can be transferred with hands, avoiding the use of heavy lifting equipment. The aluminum panels, besides the advantage of low weight, they offer the same durability that offer other alternative materials. The high strength and low weight result in less strain on the support points. So, the dimensions of the bearing frame can be reduced. This is an advantage especially important where facades in high buildings.

Safety

The aluminum meets the requirements of architects for a strong and safe material. For example, the aluminum like metal, does not burn and hence, fireproof regulations, classified as non-combustible material. Aluminum alloys fused to 650 ° c (a temperature which is achieved after a long stay in Firefox). However, this behavior is considered by specialists like advantage. The roofs of industrial buildings and exterior coatings, more and more are manufactured from aluminium thin sheet panels, which can be designed so that it melted during a large fire. In this way, opens the building allowing the escape of smoke and heat, thereby minimizing the temperature on the bearing frame, while at the same time facilitate the extinguishing of the fire. As a result, the bearing skeleton of the building can be saved, avoiding the need for reconstruction of the building from scratch or full demolition. In parallel, on fire, the aluminum panels do not emit Hazardous combustion gases. when needed great safety, are specially designed aluminum frames for Windows and doors that provide protection in cases of explosions, shootings or burglaries. In these cases, while the weight of the glass is too large, the total weight of the construction remains subdued owing to the use of aluminium frames and thus facilitate their functionality.

Endurance

Aluminium products have unlimited lifetime. Around us we find many proofs of the durability of metal. Such well known examples are: Aluminum sheets that were placed before a hundred years in the Church San Gioachino in Rome, the aluminium elements placed in the Empire State in New York in 1935 (it’s the first building where used anodized aluminum), or the statue of Eros, which for a century is located in the middle of the square, Piccadilly Circus in London. All the above examples are in superb condition today.

Aluminum does not absorb moisture, it swells, it shrinks, it does not crack, no aging as is the case with organic materials and does not require protection from ultraviolet radiation. In addition, aluminum alloys (containing magnesium, manganese and silicon) combine high mechanical strength with effective resistance to weather or atmospheric effects, both in the industrial and marine environment. As a result, the aluminum products in the construction industry have a long shelf life and require no maintenance other than a simple cleaning for aesthetic reasons.

Down under adverse environmental conditions, especially in industrial areas, the corrosion resistance of aluminum is a particularly important property. This property also ensures a long life in applications where the various components are not easy to control after the completion of the building. The natural durability of aluminum corrosion is achieved by quickly creating on the surface of a permanent and stable natural aluminium oxide layer, achieving the inactivation of material. Even if scraped, the oxide is re-created immediately. The aluminium foil is also used to protect other building materials, as for example in insulating panels. As aluminum does not absorb moisture, aluminum foil pasted on insulating materials protects against the penetration of moisture. Thin in thickness and light weight aluminium sheets or panels, are also used on roofs and walls of industrial buildings.

Aluminum can be used either anodized or painted. The result is an attractive surface that can be easily cleaned with warm water and neutral detergent.

Flexibility in design

Aluminum, offers its engineers and architects great design flexibility. The extruded, for example, has the capability of producing a wide variety of profiles suitable for the production of finished products. The panels can also be produced in flat or curved form and used in the construction of tanks, silos, or cooling towers. Formatting can also be done on site with the use of machinery. The aluminum can cut, Pierce to sandwiched either in construction or on site.

The complex shapes that can be achieved by extruding, Windows allow designers to integrate various accessories, such as hinges, fittings, materials, improving insulation, glazing etc. This feature combined with high strength in relation to its small weight, has resulted in the construction of Windows systems with high quality standards.

Aluminum may suffer surface treatments to meet the special requirements of decorative applications. The most widespread ways of surface treatment of aluminum is the anodizing and painting. The surface treatments improve the physical material resistance to corrosion and ensure a very good connection with the base metal. There is a wide range of shades that can be achieved at high, middle or low gloss.

The anodizing involves the application of a coloured or not, thin oxide coating through an electrolysis process. The anodized aluminum surfaces is tough and durable, and the resistance exceeds the expected lifetime of the building where it is used. They also offer great corrosion resistance and when the surfaces are smooth, easily cleaned.

Thermal insulation characteristics

Aluminium products contribute significantly to saving energy, the quality and safety of buildings, when used in the form of showdown over insulating materials. Like all metals, aluminium heat easily. Nevertheless, in applications such as window frames, can be used specially designed profiles ensure high efficiency in heat insulation. For example, the thermal profile of modern aluminium Windows are made of three pieces: an inner and an outer aluminium profile, including a material with high strength, high stability and high rate of heat insulation. This intermediate material (polyamide) minimizes heat transfer that would happen because of the large coefficient of thermal conductivity of aluminium, minimizing the heat losses and the appearance of vapour condensate.

Recycling

Without doubt, the aluminum is an ecological product. Besides the very long life aluminum products used in construction, after the end of their lives can be either reused or recycled without losing any of their specific quality characteristics. The use of recycled aluminum, also offers significant energy benefits. The production of aluminium from recycling requires only 5% of the energy required for the production of cast metal.

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