Airlifted into position by the Slovenian army, this tiny Alpine shelter perches on a rocky outcrop below Skuta Mountain and can sleep up to eight mountaineers (+ slideshow).
Informed by traditional Alpine architecture, the concrete-clad cabin takes on a pitched-roof form and has glazed gables that give vertiginous views of a Slovenian mountain range.
Alpine Shelter Skuta was designed by Harvard University students during an architectural workshop hosted by Rok Oman and Spela Videcnik of Slovenian studio OFIS. Oman and Videcnik asked small groups of students to design cabins to withstand the harsh Alpine climate during their Habitation in Extreme Environments workshop.
A proposal by Frederick Kim, Katie MacDonald and Erin Pellegrino was selected to replace a 50-year-old storm shelter on a plot below Slovenia's Skuta Mountain – the third tallest peak in the Kamnik Alps.
OFIS – whose previous projects include shingled ski lodges and timber-clad holiday homes – worked with structural engineers AKT II and local mountaineers to develop and adapt the structure for the mountainous terrain.
"Inspired by the vernacular architecture of Slovenia with its rich and diverse architectural heritage, the students produced 12 proposals meeting various site conditions, material considerations, and programmatic concerns," said Oman and Videcnik.
"The extreme climatic conditions in the mountains introduce a design challenge for architects, engineers and designers. Within a context of extreme risk to environmental forces, it is important to design buildings that can withstand extreme weather, radical temperature shifts, and rugged terrain."
The structure was built off-site and transported in three sections via helicopter to minimise disturbance to the plot, and installed in just one day by a team of 60 volunteers.
Anchored to the rock using metal joints, it is clad in glass fibre and concrete panelling, and has triple-glazing to help it withstand the strong winds and snow drifts that are common in the region.
"The bivouac [shelter] is an object that represents a basic human necessity," said the architects. "It is a symbol of refuge."
"The outer form and choice 
of materials were chosen to respond to the extreme mountain conditions, and also provide views to the greater landscape."
The cabin comprises three timber-lined sections that decrease in scale towards the edge of the mountain, creating a stepped roofline.
The first module provides an entrance, storage and an area for food preparation, while the second provides a place to sleep and socialise. The third contains bunk beds.
"All would agree that, despite the small size, it was no less demanding than any large building project," said the architects. "However, all of the effort and planning for this small scale project is meant to keep the memory, spirit and culture of the mountains as a special place for Slovenians."
"The hope is that the bivouac will serve as a shelter for all of the climbers who need it, and that through their care and attention the bivouac will continue to do so for many years."
Photography is by Anze Cokl
, Andrej Gregoric, and Janez Martincic.
Project credits:
Architects: Rok Oman, Spela Videcnik
Student Design Team: Frederick Kim, 
Katie MacDonald
, Erin Pellegrino
OFIS architects Team: Andrej Gregoric, 
Janez Martincic, 
Maria Della Mea, 
Vincenzo Roma, 
Andrea Capretti, Jade Manbodh
, Sam Eadington
Structural Engineering: AKT II,Hanif Kara 
Edward Wilkes
Local Structural Engineering: Projecta, Milan Sorc
Engineering & Consulting: Freeapproved, Anze Cokl
Realization & onsite Coordination: 
PD Ljubljana Matica, Matevz Jerman, Davor Rozman
Facade: Rieder Smart Elements, Wolfgang Rieder, 
Matthias Kleibel
Glazing: Guardian, Domen Komac
Bivouac maintainance representatives: Matevz Jerman 
Davor Rozman
Principal Contractor: Permiz d.o.o.
Bostjan Perme

Anchors and Fixation: Hilti
Thermal and fire safe insulations: ROCKWOOL stone wool
Site Preparation and Construction Team: Alpinist section PD Ljubljana Matica, Visinska dela Orti
Team: Matevz Jerman, Jernej Ortar, Blaz Ortar, Davor Rozman, Natasa Vodopivec, Matevz Kastrin, Boris Mance, Boris Bokavsek, 
Luka Klemencic, Ziga Asic, Jernej Knop, Anze Klaric, Uros Grilj, Marko Granda, Boštjan Oblak
Helicopter Flights: Slovenian Army, Tomaz Perse, Primoz Pintar, Andrej Groselj, Peter Smrkolj
Installation: Mountain Rescue Association of Slovenia, Brane Zorz, Tadej Mrak, Bojan Goli
Habitation in Extreme Environments Studio students:Â Myrna Ayoub, Oliver Bucklin, Zheng Cui, Lauren McClellan, Michael Meo, Nadia Perlepe, Elizabeth Pipal, Tianhang Ren, Xin Su
Sponsors: Rieder Smart Elements, AKT II, OFIS architects, Guardian Europe, Hilti, Ravago, PGM Hotic, Visinska dela Orti, ROCKWOOL Adriatic
