ABSTRACT
Sandwich panels are composite elements consisting of two metal sheets and a core made of PUR foam or mineral wool. They are used as metal building envelopes on industrial buildings. The demand on sandwich panels increased highly within the last years and they became the most used metal building envelope system in Europe (Kuhnhenne & Ungermann 2017). The reasons therefore are the high state of pre-manufacturing, the good building physic properties and the quick installation on construction site (Bauen mit Stahl e.V. 2000). Thereby, the installation of panels on the building is realized by the fixation on the substructures using screws which penetrate both metal sheets. Due this procedure sandwich panels can be only used on one building during their lifetime. This paper aims on the possibilities of reuse of sandwich panels. Therefore, an assessment of sandwich panels, which were fixed on a prototype-research-building for 14 years, was done. The building was dismantled and tested according to the standard (EN 14509). Furthermore, a clamping system was developed which allows the fixation of a sandwich panel on a buildings substructure without any penetration. This solution makes a general reuse of sandwich panels possible.
