The external cladding of the buildings therefore plays a fundamental role in contemporary architecture, since in addition to performing the function of protection from atmospheric agents, they also define the formal character of the building. For this reason, it is necessary to reconcile the various aesthetic, durability, environmental sustainability and energy saving needs, also taking into account the costs, in proportion to the duration of the product applied.
Specifically, the external cladding layer of a building must resist mechanical stresses, such as wind and rain, corrosive phenomena in the specific case of metals, seasonal temperature fluctuations, which cause thermal expansion of the elements, as well as surface or interstitial condensation phenomena of the external wall.
The diffusion of aluminium as a cladding material takes place thanks to its extraordinary characteristics of lightness, hardness, good plasticity and formability, qualities that permit obtaining different products, suitable for any type of design complexity, as well as minimum dimensional tolerances, precision and assembly speed.
Used in external cladding, or as a finishing layer for ventilated facades thanks to its high resistance to atmospheric agents and corrosion: Indeed, aluminium in contact with oxygen is passive, covering itself with oxide and protecting itself from corrosion problems.