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Slanted Roof over Volcanic Ash: a Concrete Resting Station Amidst Iceland's Geology

Authors:
Tom Rumberger, Leonie Scholz
Slanted Roof over Volcanic Ash: a Concrete Resting Station Amidst Iceland's Geology
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Constructed from local volcanic ash and concrete, the towering structure features a slanted roof that offers expansive views, serving as a functional resting station for tourists exploring Iceland's unique caves.
5 key facts about this project
01
Constructed using local volcanic ash mixed with concrete.
02
Features a slanted roof that doubles as an observation deck.
03
Integrates multiple entrances for improved accessibility.
04
Designed to reflect the geological warping zones of the landscape.
05
Encourages visitor engagement with the surrounding natural environment.

The VINÁTTA TOWER is located in Iceland and serves as a resting station for tourists visiting nearby caves. The design focuses on connecting the building with its natural surroundings. Inspired by the landscape's geological features, particularly the meeting point of two continental plates, the architecture promotes an experience that encourages visitors to engage with the environment while enjoying basic amenities.

Design Concept

The structure consists of two concrete bodies, which are purposely simple in design. This minimalism allows the tower to stand out against the rugged landscape without overwhelming it. The triangular shape of the tower reflects the warping zones formed by tectonic activity, symbolizing stability amid an ever-changing environment. As a resting place, the VINÁTTA TOWER invites exploration and contemplation.

Materiality

Concrete is the primary material used in the VINÁTTA TOWER's construction. It features a unique blend that includes ash and black sand from local volcanic sources. This choice not only enhances the building's aesthetic but also aligns with sustainable practices by using materials that are readily available in the area. Such an approach helps to reduce the environmental impact of transportation and contributes to the project's connection to the place it occupies.

Functionality and Layout

The layout of the VINÁTTA TOWER is designed to facilitate easy access for visitors. There are two entrances to allow smooth movement throughout the space. The ground-level area serves various functions, providing seating and an information desk that acts as a bar. This arrangement balances accessibility for visitors with the need for privacy in areas like restrooms. The design prioritizes comfort and security for everyone who uses the space.

Interaction with Nature

The slanted roof invites visitors to walk on top, offering expansive views of the surrounding landscape. This feature transforms the roof into a place for active engagement with nature. By walking on the roof, visitors can appreciate the beauty of the Icelandic scenery all around them. In this way, the VINÁTTA TOWER fosters a connection that encourages people to reflect on their surroundings while enjoying the functional aspects of the building.

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The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

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