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Rainwater Harvesting Roof with Glulam Structure in Volcanic Landscape Café

Authors:
Krzysztof Plonski, Roman Dywojna, Mikolaj Plonczynski, Kamil Bronowicki
Rainwater Harvesting Roof with Glulam Structure in Volcanic Landscape Café

Project in-detail

The sloped roof designed for rainwater harvesting, constructed from glulam, reflects the volcanic landscape while providing a functional café for travelers to enjoy local views and refreshments.
5 key facts about this project
01
The roof design facilitates efficient rainwater harvesting, essential for the remote location.
02
Glulam structural elements are sourced from renewable forests, reducing environmental impact.
03
The café features a bent A-frame design that echoes the local geological formations.
04
Large glass curtain walls enhance natural light and provide panoramic landscape views.
05
Charred wooden shingles used for cladding improve durability and fire resistance.

The Iceberg Café is an architectural project situated in a volcanic region of Iceland. This structure is designed to function as a café and visitor center, strategically placed to provide a resting area for travelers while simultaneously enhancing the aesthetic experience of the surrounding landscape. The project exhibits a harmonious blend of architecture and ecological sensitivity, emphasizing sustainability and environmental integration.

The overall architectural design is characterized by a streamlined form that mirrors the natural contours of the Icelandic terrain. The elongated building integrates large glass curtain walls that connect indoor spaces with the external environment, allowing natural light to permeate and offering panoramic views of the striking volcanic landscape. This transparency enhances the user experience, providing a connection to the natural elements outside.

Sustainable design approaches are central to the Iceberg Café. The roof is designed with a slope that facilitates rainwater collection, ensuring an efficient water management system in a remote area where such resources are critical. Additionally, the roof supports solar panel installations, extending the project’s commitment to renewable energy. Skylights are thoughtfully integrated to maximize daylighting while minimizing reliance on artificial light sources.

Unique Materiality and Construction Techniques

The choice of materials in the Iceberg Café reflects a commitment to both sustainability and local context. Glulam timber is employed for structural elements due to its lower carbon footprint compared to traditional materials such as concrete or steel. This wood is sourced from renewable resources, aligning with the project’s ecological goals. The foundation utilizes precast concrete, providing resilience against the elements and ensuring durability in the harsh climatic conditions common to volcanic areas.

Architectural concrete is utilized for the exterior façade, not only contributing to the building’s robustness but also enhancing its visual compatibility with the natural surroundings. Inside the café, gypsum board partitions delineate spaces efficiently while maintaining an airy atmosphere. Vinyl materials are selected for flooring and wall finishes, promoting indoor air quality by reducing the release of volatile organic compounds (VOCs).

Innovative Design Approaches

The Iceberg Café’s design effectively engages with its geographical location, embodying features that set it apart from other architectural endeavors. The open layout encourages social interaction among visitors and maximizes the café's functional versatility. Various seating arrangements cater to different group sizes and provide options for both leisurely dining and quick refreshments.

Moreover, the sloping roof not only serves functional purposes but is also a symbolic representation of the nearby icebergs, highlighting the project's conceptual ties to the landscape. This thoughtful integration of form and function exemplifies how architecture can respect and reflect the environment in which it exists.

For further insights into this architectural project, including detailed architectural plans, sections, and design ideas, readers are encouraged to explore the presentation of the Iceberg Café in greater depth.

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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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