Acoustic screens made of perforated sheets absorb noise

Schallschutzmauer aus Lochblechen in bunten Farben

SCHÄFER Perforated Metal supplies individual components for noise barriers

Neunkirchen, 15th November 2022. In road and rail construction, the requirements for on-time delivery in the required quantity are just as high as for the quality of execution. The pan-European noise protection specialist supplier MICE Infracoustics from Belgium relies on SCHÄFER Perforated Metal as a supplier for the visible exterior of acoustic screens. The cladding made of perforated aluminium sheet, finished with a powder coating – also available with anti-graffiti treatment on request – combines functional as well as design elements in one component.

Schallschutzmauer aus Lochblechen in bunten Farben
TU 05 metallic acoustic screens from MICE Infracoustics in Mechelen with aluminium elements from SCHÄFER Perforated Metal.

Acoustic screens are particularly needed on roads and railways to alleviate the propagation or reflection of unwanted noise. For its noise barriers,  MICE Infracoustics uses perforated aluminium panels with a thickness of 1.5 to 2 millimetres, which are perforated in zones. These elements often have to be embossed for design reasons or because of the mechanical requirements for rigidity. After forming, the surface of the element is finished with a powder coating. The ready-to-install elements are up to 6,000 millimetres long and have different widths.

Schallschutzmauer aus Lochblechen in bunten Farben
Sound-absorbing TU 05 cladding with aluminium elements for use in access shafts, tunnel interiors and as cladding along railway tracks.

"We need reliable delivery of ready-to-install, individually manufactured perforated metal sheets in large quantities, measured in thousands of square metres, in consistent quality. Consultancy as a service is also important to us. We now have a long-standing, trusting relationship with SCHÄFER Perforated Metal, having successfully completed a number of projects together," explains Pierre Letawe, Project Engineer at MICE Infracoustics in Belgium.

Different versions of acoustic panels are required for each application, whether in existing buildings for noise remediation or in new buildings with strict noise restrictions. Examples of realised projects can be found, for example, in Mechelen (Belgium), with 3,000 square metres of metallic acoustic screens for sound absorption of reflections on the wall, or in Alleur (Belgium) as well as in Dudelange (Luxembourg), to prevent the propagation of road noise in housing estates.

Schallschutzmauer aus Lochblechen in bunten Farben
AU 06 noise barrier in Dudelange with horizontally overlapping aluminium elements from SCHÄFER Perforated Metal.

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Rüdiger Boller

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