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Geothermal Heated Copper Roof Integrating Visitor Experience in Icelandic Caves

Author:
Finn Crawford
Geothermal Heated Copper Roof Integrating Visitor Experience in Icelandic Caves

Project in-detail

The geothermal heated copper roof serves as both a structural element and a viewpoint, enhancing the visitor experience in the unique geological landscape of the Grjótagjá caves, providing spaces for exploration and engagement with the natural environment.
5 key facts about this project
01
Geothermal heating system prevents snow accumulation on the roof.
02
Patina copper roof integrates with the natural landscape.
03
Sunken café design encourages an intimate interaction with the rock face.
04
Visitor centre orientation provides seclusion from main pathways.
05
Observation tower draws visitors toward the continental fault lines.

The Grjótagjá Caves Regeneration Scheme is set in Iceland, aiming to improve visitor interactions while carefully considering the natural landscape. The project focuses on integrating new structures within the unique geological environment of the Grjótagjá caves. Through a series of planned stages, it seeks to create spaces that enhance the experience of visitors without overwhelming the surroundings.

Visitor Centre at Karlagjá

The first stage features the Karlagjá Visitor Centre, which includes a roof that visitors can walk on. This roof also provides shelter and allows for views of the landscape. Made from patina copper, the roof is designed to be heated from below, which helps to keep it clear of snow in colder months. Inside, a sunken café encourages a close connection to the rock wall, creating an intimate setting where visitors can appreciate the natural material up close.

Visitor Centre at Kvennagjá

The second stage introduces the Kvennagjá Visitor Centre, which enhances the bathing experience. This structure includes private bathrooms and showers, purposefully placed away from busy pathways. This orientation provides visitors with a peaceful environment, allowing them to enjoy the caves away from the crowd. The design fosters a sense of privacy, making the experience more personal.

Observation Tower

The final phase includes an observation tower located in the fields nearby, designed to lead visitors along pathways that explore the continental fault lines. This structure provides elevated views, allowing guests to take in the surrounding landscape. Designed with a light footprint, it blends well with the environment. The goal is to encourage exploration while highlighting the natural beauty of the area.

One notable feature of the overall design is the careful choice of materials. The patina copper roof of the Karlagjá Visitor Centre not only serves its functional purposes but also visually connects the building to the landscape, enhancing the relationship between the constructed elements and the natural surroundings.

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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
competition now

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