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Cube Alpnach 

Expressive architecture: making a statement with a Klimaholzhaus 

A family in Alpnach dreamed of a healthy wooden house with clear, cubic forms. Based on their own sketches, the design was created with large spatial units and flowing transitions. The most striking details are the large windows and facade incisions – yet the proportions of the house remain harmonious: while the upper floor emphasises the vertical like a pulpit, the flat roof above the ground floor ties the extensive building together.

Configuration overview

Components used

  • LIGNO Acoustic light  |  Ceiling cladding 

    Produktcode: LIGNO Akustik light 3S_33_a70g_625-12n25-4_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 

    _625-12n25-4 Slat profile "nature"

    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

    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

    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

  • LIGNO Rippe Q3  |  Ceiling component

    Produktcode: LIGNO Rippe Q3_310-450_r0_s0_z26_p0_a50g_625-12n25-4_WTL_gb_buv
    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 Akustik klassik).

    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

    _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 

    _625-12n25-4 Slat profile "nature"

    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

    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

    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

  • LIGNO Uni Q3  |  Wall component

    Produktcode: LIGNO Uni Q3_110_625_NSi_gh_b0
    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.

    Element height

    _110 mm 

    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 

    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

    _NSi Industrial quality

    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

    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

    _gh Planed

  • LIGNO U*psi  |  Insulation joist

    Produktcode: LIGNO U*psi F_n_200
    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

  • Waser Holzbau Planung GmbH

    Architect

    Allmendstrasse 18
    CH - 6387 Wolfenschiessen
     

    www.waserholzbau.ch

  • Waser Holzbau AG

    Execution

    Allmendstrasse 18
    CH - 6387 Wolfenschiessen

    www.waserholzbau.ch

  • Sibylle Kathriner Fotografie

    Photographer
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