Choose your language

Lippe bath in passive house standard

Noise effectively reduced 

Germany's first public indoor swimming pool built to the passive house standard has a roof structure made of wood: The material is insensitive to chlorine, offers slim cross-sections with large spans and is bright and friendly. The acoustic design is also pioneering: the roof panel is a cross-laminated timber box element with an integrated acoustic absorber for quietness. 

Configuration overview

Components used

  • LIGNO® Block Q3  |  Roof component

    Product code: LIGNO® Block Q3_150-210_rg0_s0_z26_p26_a0_625-23-8_WTE_gb_b0
    Installation oben

    Whether the element is open or closed at the top is determined by the area of application. If, for example, the element is to be filled with fill on site as a storey ceiling or roof terrace (LIGNO® Rippe Q3-x), its cavities are open at the top (feature _r0). To guide pipes at the top of the element, a cross grid (_r25, _r50) can be added to some superstructures. For roof superstructures, there is usually a flat closed finish _rg0 (LIGNO® Block Q-x, LIGNO® Block Q3-x or corresponding versions of LIGNO Acoustic classic).

    Installation top

    _rg0 Closed, without cross grid


    The height of the load-bearing webs of the element is variable and determined according to static requirements from load and span. Within the framework of this configurator, the selection is limited to four height ranges. A more precise definition is made later during pre-dimensioning or verification with the LTB-x calculation programme. Bulk volume and/or necessary space for installations can also be decisive for the height.


    _150-210 Small span 

    Fire resistance

    If fire protection is required, an additional layer is added below the web area (for elements with strip profiles _z26, _z53, _z80, for elements with board profiles Akustik klassik _k50g). Their height determines the fire resistance duration of the cross-section from 30 to 90 minutes. The fire resistance must be statically verified. If there are no requirements, the standard versions _z0 or _k50l are to be selected.

    Fire resistance

    _z26 REI 30 Fire resistance


    Panel designs with slat profiles and additional layer can be configured with an additional cavity (_p26, _p53) below the additional layer for installation guides, fixtures or to improve sound absorption. Cables laid there then do not penetrate the fire-protection layer. If required, the cavity is filled with insulating material (_p26mw, _p26ha) to improve acoustic absorption. If no cavity is necessary, the characteristic _p0 is selected.


    _p26 26 mm Height

    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

    _a0 Without absorber 


    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.


    _625-23-8 Slat profile 

    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

    _WTE Silver fir, economy 


    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.


    _b0 Untreated



Project participants

  • TCHOBAN VOSS Architekten GmbH


    Bäckerbreitergang 75

    20355 Hamburg


  • WIEHAG Holding GmbH


    Linzer Straße 24
    A-4950 Altheim, Oberösterreich


  • Frank Herlet


    Hugo-Eckener-Straße 29
    50829 Köln


  • Related references

      Panorama Spa in the indoor pool

      In the newly created bathing hall at the Bio-Seehotel Zeulenroda, the architects of the...

      07937 Zeulenroda 

        Dachbauteile mit Akustikverkleidung im Hallenbad | Bio-Seehotel Zeulenrodatitletitletitletitle

      Nordbad Darmstadt

      The Nordbad swimming pool in Darmstadt serves as a sports facility with different water surfaces for recreation, but also...

      64283 Darmstadt

        Im neuen Nordbad Darmstadt spielt Holz nicht nur eine tragende Rolle, sondern sorgt dank individuell konfigurierbarer Brettsperrholz-Dachbauteile von Lignotrend auch für beste Akustik und ästhetische Raumqualität.Direkt an das helle Eingangsfoyer schließt ein massiver Gebäudekern aus Stahlbeton an, in dem unter anderem die Umkleiden und Sanitärbereiche untergebracht sind. Er unterstützt die Aussteifung der Holzarchitektur für die Dachlandschaft. Paneele LIGNO® Akustik light zieren hier die Decken und Wände aus Beton, erfüllen akustische Aufgaben und integrieren Schrank- und Türöffnungen. titletitleDie Schwimmhalle hat eine Dachkonstruktion aus Holz. Die Unterseiten der Dachbauteile sind akustisch wirksam. Mit zusätzlichen Verkleidungsflächen aus Paneelen LIGNO® Akustik light an den oberen Wandbereichen perfektionierten die Raumakustikplaner die Ruhequalität.titletitletitletitletitletitletitletitletitletitletitletitletitletitletitletitletitle