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office and café
 in Mannheim

Room acoustics: wood and concrete - a successful mix

Contemporary and yet typical of the quarter, this architectural “gap-filler”in Mannheim‘s Lange Rötterstrasse presents itself. The roof mediates as a folded surface between the mansard and gable roof geometry of the neighbouring buildings, the facade transfers the bark pattern of the surrounding plane trees into an abstract pixel image. Inside, the new building combines a versatile room program of café, offices, living maisonette, guest apartment, midwife practice and daycare center. 

Configuration overview 

Components used 

  • Schematische Darstellung einer Wandverkleidung made of LIGNO® aus Holz

    LIGNO® Acoustic light  |  Wall cladding  

    Product code: LIGNO® Acoustic light 3S_33_a70g_625-12-4_WTL_gb_buv
    Wood type 


    Various wood species are available for the visible layer. For quality reasons, individual wood species cannot be configured for all profiles; for technical reasons, surface treatments are excluded for some wood species.

    Wood type 

    _WTL Silver fir knotless, patterned 



    The visible layer is profiled with joints. The code for profiling indicates in millimetres: Element width, strip width (rounded, from/to if applicable) and joint width (rounded) as well as a letter identification for variants, e.g. with chamfered strip edges or with additional height gradation.


    Note: Some profiles indirectly cause exclusions for other configuration options.


    _625-12-4 Slat profile 



    The face is subjected to a brushing _gb as standard, which produces a stronger or weaker structure depending on the type of wood and makes the surface less sensitive to scratches.  Alternatively, a smooth sanding _gs can be carried out, or on request a bandsaw cut _grimitated.


    _gb Brushed 



    Depending on the type of wood, the optional application of a surface treatment is possible ex works. Individual colour finishes are always sampled for coordination. For elements in individual lengths, colour treatment is limited to max. 5 m length.


    _buv UV-protection stain 

    Room acoustics 


    If the soffit of the element is to have a good sound-absorbing effect, the penultimate layer is configured as absorber _a50g. Otherwise, this layer is configured as a solid wood layer _a0.

    Room acoustics 

    _a70g 70 % Absorber 



Project participants 

  • motorlab architekten


    Fritz-Salm-Straße 9
    68167 Mannheim

  • uli odenwald furniture interior design


    U6, 27-28 
    68159 Mannheim

  • Dorsch Holzdesign


    Ernst-Reuter-Straße 3
    67646 Speyer

  • Olivier Pol Michel


    Bunsenstraße 43

    50997 Köln


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