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Fluted Earth Columns Supporting Curved Concrete Roofs in Sustainable Shelter Design

Author:
Vincent Dumay
Fluted Earth Columns Supporting Curved Concrete Roofs in Sustainable Shelter Design
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Fluted earth columns support a curved concrete roof in a sustainable shelter that reimagines the interplay between natural and modern materials for functional space.
5 key facts about this project
01
Fluted columns created using rammed earth enhance structural stability and aesthetics.
02
Curved concrete roof design provides a unique spatial experience while optimizing light flow.
03
Generously sized earth columns reflect an innovative approach to traditional material performance.
04
The project juxtaposes natural and artificial materials to address sustainability challenges.
05
Integrated tie rods in columns ensure structural integrity while maintaining visual appeal.

A Shelter with Three Columns offers an innovative solution for blending form with functionality. The design features a striking arrangement of horizontal surfaces held up by three supportive columns. Located in a setting that promotes engagement with nature, the structure serves as both shelter and an exploration of spatial dynamics. This project is built on the principle of connecting two primary materials: earth and concrete, showcasing their unique qualities while addressing modern sustainability issues.

Concept and Spatial Arrangement

At the core of the design is a focus on spatial experience. The project consists of two horizontal components: a ground slab and a roof, both supported by three substantial columns. This configuration encourages interaction, inviting people to engage with the environment while navigating the space. The gentle curves of the roof and ground slab exemplify the versatility of reinforced concrete, serving both aesthetic and structural roles.

Material Interaction

Concrete is the main material for the roof and ground slab. It is well-known for its durability and performance. The cement in concrete comes from heating limestone and clay rocks, a process that raises important environmental concerns. Using concrete alongside a natural material like earth introduces a dialogue about both modern construction and sustainability.

Structural Elements

The columns are made of rammed earth, a choice that lends a unique character to the design. Given that earth has limited mechanical performance, these columns are generously proportioned to provide adequate support for the roof. This thoughtful approach combines stability with a pleasing look, enhanced by the fluted texture created through tubular formwork. This detail highlights the composition of the earth, made from clay, sand, and gravel.

Design Intent

The project encourages a thoughtful conversation around the use of traditional materials in conjunction with modern techniques. By pairing earth with concrete, it emphasizes sustainability while remaining open to innovative practices. This combination reflects a deeper exploration into the future of building design, illustrating how old and new can coexist in a meaningful way.

The textured columns stand as a testament to the earth used in their creation, establishing a connection between raw materials and the crafted structure. This blend results in an engaging architectural experience, where visitors can appreciate both the beauty and functionality of the design.

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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

Open architecture competitions

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    Selected winning projects have the potential to be constructed
  • Ideas competitions
    Experimental competitions with the focus on pushing the boundaries of creativity
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Prize Monetary award
Eligibility Open to all
Final registration deadline 18 September 2025

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