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Headquarters of the Luxembourg Scout Organisation FNEL

Rough shell, warm core

Bei dem in Cortenstahl gekleideten Gebäude der FNEL offenbart sich erst auf den zweiten Blick, dass es sich hier um einen Holzmassivbau aus Brettsperrholzelementen von Lignotrend handelt.
Der in helles Holz gerahmte Treppenaufgang harmoniert mit dem hellen Holz der in Akustikprofil gekleideten Decken von Lignotrend.
Die Innenräume der FNEL Zentrale werden dominiert durch viel helle Weißtannenholz - so auch in diesem Veranstaltungssaal mit Holztafelwänden und profilierten Akustikdecken von Lignotrend.
Die von Lignotrend fertig vorbereiteten Decken- und Dachelemente sowie vorgefertigten Wandelemente ermöglichten die schnelle Montage auf der Baustelle.
Bei der ebenerdigen Terrasse kommt die Sichtseite der Deckenbauteile, verkleidet mit einem Akustikprofil von Lignotrend, besonders gut zur Geltung.
Unter der Cortenstahl-Verkleidung der Fassade verbergen sich wärmebrückenminimierende U*psi-Dämmständer von Lignotrend mit dazwischen eingeblasener Zellulose-Dämmung.

The FNEL, Fédération Nationale des Eclaireurs et Eclaireuses du Luxembourg (Federation of Luxembourg Scouts), has inaugurated its new headquarters in Luxembourg City. The building, designed by the local architectural firm heisbourg strotz architectes, impresses with its rough building shell made of Corten steel. Only at second glance does it reveal that it is a solid wooden building made of cross-laminated timber elements by Lignotrend, Weilheim-Bannholz, whose warm and friendly interior develops very special interior qualities. 

Configuration overview

Components used

  • LIGNO® Rippe Q3  |  Ceiling component

    Product code: LIGNO® Rippe Q3_275_r0_ssp_z26_p0_a50g_625-12-4_WTL_gb_b0
    Installation top


    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

    _r0 Open, without cross grid

    Statics


    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.

    Statics

    _230-290 Medium 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

    Cavity


    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.

    Cavity

    _p0 No cavity

    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

    _a50g Integrated absorber

    Profile


    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.

    Profile 

    _625-12-4 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

    _WTL Silver fir knotless, patterned

    Structure


    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.

    Structure

    _gb Brushed

    Treatment


    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.

    Treatment

    _b0 Untreated

  • LIGNO® Block Q3  |  Roof component

    Product code: LIGNO® Block Q3_309_rg0_s0_z26_p0_a50g_625-12-4_WTL_gb_b0
    Installation top


    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

    Statics


    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.

    Statics

    _310-450 Large 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

    Cavity


    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.

    Cavity

    _p0 No cavity

    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

    _a50g Integrated absorber

    Profile


    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.

    Profile 

    _625-12-4 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

    _WTL Silver fir knotless, patterned

    Structure


    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.

    Structure

    _gb Brushed

    Treatment


    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.

    Treatment

    _b0 Untreated

  • LIGNO® Block Q3  |  Roof component

    Product code: LIGNO® Block Q3_196_rg0_s0_z26_p0_a50g_625-12-4_WTL_gb_b0
    Installation top


    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

    Statics


    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.

    Statics

    _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

    Cavity


    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.

    Cavity

    _p0 No cavity

    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

    _a50g Integrated absorber

    Profile


    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.

    Profile 

    _625-12-4 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

    _WTL Silver fir knotless, patterned

    Structure


    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.

    Structure

    _gb Brushed

    Treatment


    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.

    Treatment

    _b0 Untreated

  • LIGNO® Acoustic light  |  Ceiling cladding 

    Product code: LIGNO® Acoustic light 3S_62_a50g_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

    Profile


    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.

    Profile 

    _625-12-4 Slat profile 

    Structure


    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.

    Structure

    _gb Brushed

    Treatment


    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.

    Treatment

    _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

    _a50g 50% Absorber

  • LIGNO® U*psi  |  Insulation joist

    Product code: LIGNO® U*psi F_g_240
    Insulation joist


    The lower the U-value of a component and the lower the psi value of the details, the less heat is lost. This is precisely where the U*psi® cross-laminated timber insulating uprights from Lignotrend come into effect: They implement high insulating thicknesses in natural timber and minimise thermal bridges.

    Insulation joist

    Fleece as chamber separation

Reference-related

Downloads

Project participants

  • hsa - heisenbourg strotz architectes 

    Architect

    Rue Adolphe Fischer 13

    L - 1520 Luxembourg
     

    www.hsa.lu

  • Prefalux S.A.

    Execution

    18 Rue de la Gare
    LUX - 6117 Junglinster

    www.prefalux.lu

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