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CORTEN Steel Arches Bridging Tectonic Forces in Iceland's Dynamic Landscape

Author:
Wil Hershner
CORTEN Steel Arches Bridging Tectonic Forces in Iceland's Dynamic Landscape

Project in-detail

Weathering steel arches interact dynamically with shifting tectonic plates at Grjótagjá, creating a resilient structure that serves as a bridge between natural forces and human experience.
5 key facts about this project
01
Weathering steel structures adapt to the shifting landscape over time.
02
Pivot points in select arches allow for dynamic movement as tectonic forces interact.
03
Notched plates visually document the passage of time through wear and tear.
04
The design features a ribcage-like form, symbolizing strength and vulnerability.
05
Located at a unique tectonic divide, the project highlights geological phenomena.

The design at Grjótagjá caverns is located at the tectonic divide between the Eurasian and North American plates. The site features a landscape shaped by constant geological activity. The concept centers on the themes of creation and destruction, exploring how architecture can reflect the natural processes all around. The design utilizes modular arches that resemble a ribcage, representing both the strength and fragility of the structure as it spans the rift created by shifting tectonic forces.

Modular Arches

Each arch in the design adapts to its surroundings. The modularity allows for flexibility in response to the shifting landscape over time. These arches are not static; rather, they engage with the geological phenomena present at the site. This thoughtful integration highlights the resilience of the structure while also acknowledging the transformations that the landscape undergoes.

Dynamic Movement

Certain arches feature pivot points, facilitating movement as the chasm between the tectonic plates widens. This design choice supports the architecture's ability to adjust and maintain functionality in a changing environment. The interaction of these structural elements with the geological forces emphasizes the project’s focus on time and adaptability. As the earth shifts, the arches respond, underscoring the ongoing dialogue between built form and nature.

Materiality and Time

Weathering steel is used in the construction of the arches. This material is intentionally selected to illustrate themes of change and decay. Over time, the weathering steel oxidizes, creating a visual record of time on the structure. The choice of material reinforces the idea that the building is alive, engaging with its environment and reflecting the natural processes of erosion that occur in the landscape.

Notched Plates

Notched plates are also part of the arches. These notches serve as indicators of time and movement, marking how the structure evolves as it interacts with geological forces. Each notch captures a moment of transformation, adding to the visual narrative of the architecture. This design detail deepens the connection between the built environment and its surroundings, illustrating how architecture can be a witness to the changes in the landscape over time.

The overall design captures the interplay of movement and stillness, connecting form and function in a cohesive manner. The notched plates elegantly frame the architecture’s relationship with the shifting landscape, creating a structure that is both functional and responsive to its environment.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

Enter an open architecture
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