Metal cladding in double skin façade Qatar
Facade is an aesthetic component that helps to define the aesthetics of a building’s architecture, but in addition to this, it also plays an essential role in the internal energy performance of a building. An ideal and unique building in terms of design and architecture, in addition to the special beauty it gives to the city, should also be useful in terms of environmental impact.
The double-skinned façades, pervasive in European architecture, allow for natural ventilation while controlling sound, wind and rain. In fact, these façades will be more used in modern architecture. Each façade has its own characteristics. Here we want to deal with the features of the double skin façade and express the metals used and their application.
What is a double-skin façade?
The double-skin façade actually consists of three layers, which usually include the outer shell with a single layer of single-pane glass, the inner shell, which usually consists of double-glazed glass, and the space between the two layers, which vary in size depending on the design. In fact, this empty space acts like an air duct, which plays an important role in sound and heat insulation and is a kind of natural ventilation.
Features of the double skin façades
The use of this type of view is increasing rapidly. In fact, two-shell views are a group of systems that are very similar in appearance and very different in practice.
To classify the features of the double skin façade, we must look at three major differences.
1. Systems in which the interior space or cavity is completely closed. The cavity acts as a shield against heat and sound. This cavity acts as a shield against heat and sound. And systems in which there is a mechanical ventilation system inside, and these systems are second skin, which includes sound insulation, thermal insulation and weather conditions.
2. Systems in which there is a mechanical ventilation system inside. In this system, the second shell is sound insulation.
3. Systems in which the interior spaces are open and the air flow acts as a natural ventilation system.
Among the features of the double skin façade, the following can be mentioned:
• Reduce peak wind pressure
• Increased use of solar heat in winter
• Reduce heat loss in winter
• General decrease in solar heat in summer
• Use of natural ventilation
• Improve facade energy efficiency
• Prevent noise from entering
• Useful use of light during the day
The features of the double skin façade show themselves in buildings that are located in crowded and polluted places and reduce energy consumption during the working hours of the building.
Other features of the double skin façade can be such as better use of the surrounding environment, development of the profile around the building (development of the exterior of the building), thermal relaxation, the possibility of using solar energy throughout the year, preventing the building from heating, adjustment Indoor temperature during winter and summer, consumer comfort and the development of visual comfort such as avoiding dazzling lighting.
Double skin façade is one of the façade type
One of the most important features of the double skin façade is the reduction of energy consumption, which depends on the following factors
• Type and use of the building
• Building orientation
• Insulation rate
• Ratio of transparent and opaque surfaces of the inner shell.
Double skin façade materials
• Iron plate: In designing and executing the façade of two metal shells, the use of iron sheets can be used with a minimum thickness of 2 mm and can be cut and lasered by laser devices. The main advantage of iron in the façade of double skin is the ability to run quickly and seamlessly and have a good view from inside.
• aluminum sheet: This sheet is mostly used in the façade of the building, of course, its painting process is important and must be carefully selected, and the aluminum sheet must be 3 mm, which does not warp.
• Composite aluminum sheet: The most important advantage of composite sheet is that after implementing the desired pattern, there is no need for a color line and it is equipped with pvdf colors. One of the disadvantages of this sheet is that it is not suitable inside the façade and if it is to be applied in the facade of double skin in front of the glass, it must be applied in the form of volume and cannot be applied as a single layer.
The double skin façade in winter, and indeed in cold climates, increases the solar energy inside the vents, thereby warming the interior, and in hot weather, the vents drain. That is, hot air rises and drains through the vents, and cool air is drawn in behind it, causing the inside to cool.
