Special Projects

Sasso Nero Mountain Hut

San Giovanni / Valle Aurina, Italy

Mountaintop refuge at an altitude of 3,000 meters 1 | Mountaintop refuge at an altitude of 3,000 meters
A highly unique building: built with timber, clad in copper, and fully integrated into the rough mountaintop landscape.
Design: The new Sasso Nero mountain hut is a tall standalone structure nestled into a natural depression at an altitude of 3,026 meters above sea level. With its appearance of a monumental rock, it seems to have been shaped by the glacier landscape, the wind and other harsh weather conditions. The sloping facade clad in copper sheets hides a solid timber frame construction with six floors, set on a two-level concrete base where the hut meets the mountain. Despite its remarkable appearance, the building fuses with its rocky environment.

Wood: The construction material was cut in the vicinity and processed and prefabricated by local carpenters and joiners. The interior is dominated by refined face quality grade timber – as seen in the restaurant, with a minimalist interior finishing and furnishing made of spruce from the local area, allowing for a spectacular panoramic view of the surrounding mountaintop landscape.

Energy: Thanks to the insulation properties of the construction material used here, the heating energy demand of the building is only 13 kWh/m²a despite the extreme altitude. The demand is met with solar collectors and a block-type thermal power plant.
Interior Ambiance 2 | Interior Ambiance
Mountainside Location 3 | Mountainside Location
Basic information
Year of Completion |  2017
Investor |  Autonomous Province of Bolzano
Architecture |  Stifter + Bachmann, Pfalzen/Falzes (IT)
Structural Engineering |  Stefano Brunetti, Bruneck/Brunico (IT)
Construction Time |  8 months
Number of floors |  6
Gross floor area |  510 m²
Construction Costs (netto) |  3,893 €/m²
Awards |  CasaClima Award 2018 (Special Prize)

Technical aspects
Concept |  Prefabricated concrete base for levels -2 and -1; cross-laminated timber and timber frame construction for levels 0 and up
Woodworking |  Burgerbau KG & Co., Gsies / Valle di Casies (IT); Oberlechner & Messner, Rasen-Antholz/Rasun-Anterselva (IT); HOKU, Toblach/Dobbiaco (IT)
Origin of Timber, Certification |  All wood (spruce) cut within 50 kilometers
Traceability of Timber |  Yes
Forestry Value Chain |  Only local and regional companies used
Energy Efficiency Standard |  CasaClima A (<30 kWh/m²a heating energy demand)
Energy Systems |  Solar collectors on roof; block-type thermal power station
Energy Consumption  |  13 kWh/m²a
U-Value Wall | Roof | Floor | Windows (W/(m²K)) |  average 0.24

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