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Galvalume Roof and White Cedar Joists in a Self-Sustaining Microhome

Author:
Hiroki Haji
Galvalume Roof and White Cedar Joists in a Self-Sustaining Microhome

Project in-detail

With a Galvalume roof and structural elements made from White Cedar, this self-sustaining microhome harmonizes with its natural surroundings while providing essential living spaces.
5 key facts about this project
01
Microhome features a Galvalume roof that enhances environmental durability.
02
White Cedar joists are used for structural integrity and aesthetic appeal.
03
The design incorporates a sewage system that recycles waste into fertilizer.
04
Natural light is maximized through large openings that connect to the exterior.
05
Vertical stacking optimizes space while promoting airflow and sunlight.

The design concept of the microhome emphasizes a strong connection with the surrounding environment, focusing on a natural balance that occurs without human interference. This approach reflects the cyclical patterns found in nature, where rain falls on mountains, flows into rivers, and eventually returns as moisture. The microhome encourages occupants to become aware of their place within this cycle, creating a living situation that emphasizes harmony with nature.

Setting and Adaptation

The microhome is designed to fit the shape of the land, featuring vertical stacking to maximize space. This design choice not only makes the best use of the available area but also enhances the flow of light and air throughout the living spaces. The dwelling includes essential areas such as a kitchen and a shower, promoting straightforward living without unnecessary complexity.

Occupant Experience

Sound plays an important role in the experience of living in this home. Residents can listen to the sounds of birds and flowing water, deepening their connection to the natural world. The layout allows for views of terraced rice fields, and there are spaces for activities like reading and exploring nearby forests. These elements foster a meaningful relationship between the inhabitants and their environment.

Material Selections

The materials used in construction support both practicality and sustainability. Choices include Galvalume steel plates, PVC waterproofing with adhesive, La Poly, and Styrofoam for insulation. White Cedar is utilized for structural joists, providing strength and a pleasing appearance. Aluminum window frames with double glass contribute to energy efficiency while maintaining comfort inside the home. Cross-Laminated Timber (CLT) is used for wall structures, promoting sustainable building practices.

Sustainability Focus

Sustainability is a key aspect of the design. The living space incorporates a system that transforms waste into fertilizer, supporting local agriculture. The integration of natural materials and cycles enhances the environmental focus of the project.

Ample natural light enters the home, connecting occupants to the outdoors and enhancing the feeling of openness. Large windows offer views of the landscape, drawing the beauty of nature into everyday life.

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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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