Aluminium linking - sandwich components for façades and roof structures

Where aluminium linking components are used to join two aluminium panels, an insulation layer is built in to the between the outer layers. These sandwich panels are especially well-suited to rear-ventilated façades, as well as roof structures.

Aluminium sandwich structures

Sandwich panels generally consist of thermal insulation as the innermost layer, which is then covered with outer sheets on both sides. According to the weight of the finished panel, sandwich-structure panels can be categorised into heavy, mid-weight and lightweight panels. The components are industrially manufactured in various formats and used primarily in commercial or office construction. Aluminium-linked plates are amongst the lightest plates and are used in the construction of outer-wall structures as non-weight-bearing elements. There is typically an insulation layer between the solid covering layers of the façade, made for instance from hard-foam substances or an aluminium honeycomb structure for increased flexural rigidity. The insulation layer takes care of thermal insulation, but also serves to maintain distances between other elements and to distribute structural forces. Pure or alloyed aluminium is used as an outer-covering for the façade. Advantages of its use for façades include its low weight to surface area ratio, its good resistance to corrosion, and its malleability.

Aluminum linked components as cladding

The outer cladding of a building’s wall is a an important component for the external appearance of the structure. Aluminium linked panels are physically connected with the weight-bearing structure of the building, meaning that the entire structure consists of façade panels, a substructure, and the affixing components. This can be either visible or hidden. Three-layered panels can be attached to the whole structure either as medium-format panels or, in steel frame buildings, as panels with the same height as the building’s storey size. The second option is also know as large-panel construction. The form of joints requires particularly close attention. Aluminium can stretch under heat, so restraint-free structures and high-functioning joint design are both vital to ensure the longevity and resistance to wear of an aluminium-linked façade. The façade components are available in many and varied colours, and the outermost layer can have a smooth, profiled or trapezoid appearance. Aluminium-link components are excellent surfaces for printing, meaning that they can be used as both wall components and a surface for advertising.

Aluminium-link components in the form of sandwich panels are an alternative to other facading techniques for many hall or office buildings. We would be glad to advise you whether this modern and innovative building material should be considered for your specific project.

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