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Cork-Insulated Retreat with Green Roofs Emphasizing Modular Design

Authors:
M Lema Barros, C Castelo Branco
Cork-Insulated Retreat with Green Roofs Emphasizing Modular Design
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Constructed using natural cork and chestnut wood, this eco/yoga retreat features a modular design with a green roof and advanced rainwater management systems, promoting sustainability within its serene setting.
5 key facts about this project
01
Cork cladding provides natural insulation and fire resistance.
02
Modular design allows flexible spatial arrangements.
03
Integrated blue-roof system facilitates rainwater management.
04
Radiant floor heating ensures energy-efficient climate control.
05
Natural materials minimize environmental impact and enhance aesthetics.

The design presents a contemporary interpretation of the primitive hut in Vale de Moses, functioning as an eco/yoga retreat. It aims to create a strong connection between human senses and the fundamental energies of nature. Inspired by local beehives known as "cortiços," the structure takes on a quadrangular form that fits naturally into the landscape while maintaining a minimalist design.

Functionality and Modularity
The design focuses on prefabrication, featuring a sturdy seismic structure that allows for easy assembly and disassembly. This modular setup makes it possible to adjust the layout, enabling units to be grouped or rearranged as needed. This flexibility accommodates changing requirements, ensuring that the space remains practical for its users.

Sustainable Design Strategies
Sustainability is a significant aspect, evident in the inclusion of a green roof that enhances insulation and supports biodiversity. Additionally, a Blue-roof System is integrated to capture and store rainwater, which aids in irrigation and fire safety. These strategies highlight the commitment to environmental responsibility and efficient use of resources.

Material Usage
Selected materials play an important role in the overall design. The exterior facade is made from Natural Expanded Cork Agglomerate, which provides thermal insulation and structural support. Inside, Natural Sweet Chestnut Wood (Castanea Sativa) is used for flooring, connecting the interior spaces with nature. Large areas of clear glass in the windows allow for natural light and open views of the surrounding environment.

Energy Efficiency
Energy efficiency is also a priority. A dry radiant floor system helps maintain comfortable temperatures throughout the year. Additionally, orientable photovoltaic and thermal solar hybrid panels are utilized to generate energy for lighting and water circulation. This approach emphasizes effective energy management, aligning with sustainable principles.

The design thoughtfully balances built spaces with nature, inviting interaction with the landscape through its functional and simple forms. Each element works together to create a serene environment, fostering a deeper connection between occupants and their natural surroundings.

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Enter an open architecture
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Kingspan MICROHOME 2026: Building Less to Create More

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Competition organisers

The Kingspan MICROHOME 2026 competition invites architects and designers worldwide to rethink small-scale living by creating an off-grid, modular micro dwelling under 25 m². Now in its 11th edition, the contest emphasizes sustainable, innovative, and human-centered design that demonstrates how compact living can have a big impact.

With a €100,000 prize fund, entries will be evaluated for originality, efficiency, and their response to contemporary environmental and social challenges. The competition is open to everyone, with submissions allowed individually or in teams of up to four. Registration closes on 30 September 2026, and winners will be announced on 15 December 2026.

By celebrating creativity within strict limits, MICROHOME 2026 continues to push the boundaries of compact architecture and sustainable living.

MICROHOME 2026

Design a new concept of small-scale home and share a prize fund of 100,000€

100,000 € Prize Fund / Kingpsan Edition #11 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 September 2026

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