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Gabion Walls and Photovoltaic Roofs in a Sustainable Mountain Retreat

Authors:
Sam Aitkenhead, Digory Macfarlane
Gabion Walls and Photovoltaic Roofs in a Sustainable Mountain Retreat
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Utilizing gabion walls and a photovoltaic roofing system, the design creates a sustainable retreat that offers climbers and trekkers a functional and durable shelter in a rugged mountain landscape.
5 key facts about this project
01
Utilizes gabion baskets for structural stability and thermal mass.
02
Incorporates photovoltaic roof tiles for renewable energy generation.
03
Features a 12-pointed star layout optimizing communal and private spaces.
04
Employs local materials, emphasizing sustainability and contextual integration.
05
Includes a weather data center for climber safety and expedition planning.

## Project Overview

"A New Hut with an Old Heart" is positioned in a mountainous region of Nepal, providing shelter for climbers and trekkers navigating the challenging Himalayan terrain. This retreat merges modern lightweight architectural principles with elements of traditional Nepali design, creating a functional space dedicated to the needs of outdoor adventurers. The design is informed by the region's cultural heritage, reflecting local architectural styles and symbolic motifs while ensuring durability and resilience in the face of harsh environmental conditions.

## Cultural Resonance

The design emphasizes the integration of Nepali cultural elements, including motifs derived from the national flag. The structure's layout and form celebrate local heritage while addressing the practical requirements imposed by high-altitude living. Formed around a central "12-pointed star," the layout facilitates a communal organization of spaces, including sleeping quarters, lounges, and food preparation areas. This approach fosters a sense of identity and connection to the cultural context while effectively supporting communal living.

## Materiality and Sustainability

Material selection for the hut prioritizes both performance and environmental stewardship. Gabion baskets filled with local stone provide thermal mass and structural integrity, while ceramic filters ensure safe drinking water. The roofing incorporates photovoltaic tiles to harness solar energy for electrical needs. Timber elements are used for modular construction, enhancing wind resistance, and recycled materials feature in the interior, supporting sustainable practices. This conscious choice of materials reflects a commitment to reducing transportation emissions and ensuring the building's ongoing efficiency.

## Design Outcomes

The structure is engineered to withstand the severe climatic conditions typical of its high-altitude setting. Lightweight construction methods and natural insulation systems promote thermal efficiency, while multifunctional spaces within the hut foster adaptability for varying group sizes and activities. Communal areas are designated for social interaction, promoting collaboration among users, with an interconnected layout that allows for privacy in sleeping quarters.

Notably, the aesthetic of the hut harmonizes modern design with traditional architectural qualities, creating a distinct visual identity. Features such as a wind-responsive roof assist with passive cooling and optimize energy generation from solar technology. Furthermore, the inclusion of a weather data center enhances the safety and preparedness of climbers by providing real-time environmental information. The project encapsulates a balance of functionality, sustainability, and cultural significance, serving both practical needs and as a representation of Nepalese heritage in modern architecture.

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Vancouver Tall Challenge: Building Higher Downtown

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Competition organisers

The Vancouver Tall Challenge: Building Higher Downtown is an international architecture competition organized by Buildner in collaboration with the City of Vancouver and the University of British Columbia’s School of Architecture and Landscape Architecture (SALA). The competition invites architects, designers, planners, and creative thinkers to explore innovative approaches to tall buildings in Vancouver’s downtown core, focusing on sustainability, livability, urban density, public space, and the city’s strong connection to nature. As Vancouver continues to grow, participants are challenged to rethink how vertical development can enhance urban life and contribute to a more vibrant, inclusive, and resilient city identity.

The competition offers a total prize fund of $15,000 CAD, with winning proposals selected by an international jury of architects, planners, academics, and city-building professionals. Key dates include the final registration deadline on October 29, 2026, submission deadline on November 30, 2026, and winners announcement on January 26, 2027. Full competition details, requirements, and registration information are available at architecturecompetitions.com/VancouverTallChallenge

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