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Hemp Insulation and Rainwater Systems in Compact Off-Grid Living

Authors:
Alexander Chetverik, Daria Teplova, Aleksei Tolkachev
Hemp Insulation and Rainwater Systems in Compact Off-Grid Living

Project in-detail

Utilizing hemp insulation and a rainwater recovery system, the design integrates sustainable technologies into a compact living space that promotes off-grid independence.
5 key facts about this project
01
Hemp insulation provides enhanced energy efficiency and sustainability.
02
Rainwater recovery system supports self-sufficiency in water management.
03
Modular design allows for customization and adaptability to various sites.
04
Wooden facade enhances natural aesthetic while ensuring durability.
05
Integrated solar panels facilitate independent energy generation.

The Eco-Wedge House is an innovative solution for off-grid living, focused on sustainability and efficiency. Located in Spain, it responds to the growing interest in environmentally friendly housing as individuals seek a deeper connection with nature. The design features a modular structure that allows for flexibility in both layout and function, accommodating a range of living needs.

Modular Design Efficiency

The design employs a modular approach with prefabricated components, which enhances construction efficiency and allows for various configurations. This method supports versatility, enabling the house to adapt to different sites and circumstances. Within the compact footprint, essential functions such as sleeping, working, and dining are organized thoughtfully to maximize space without compromising comfort.

Sustainable Resource Management

Central to the Eco-Wedge House are several systems that manage energy and water resources. A rainwater recovery system captures natural water, while solar panels provide heating for water and photovoltaic solar cells generate electricity. A solar wall collector aids in warming the air naturally, supplemented by a wood-burning stove for additional heating. This integrated approach fosters independence and promotes sustainability in daily living.

Material Specifications

In line with its focus on sustainability, the Eco-Wedge House uses a selection of eco-friendly materials. The structure consists of a prefabricated wooden frame, which is covered with plywood for support and durability. The exterior is finished with wooden panes that enhance insulation and add visual warmth. Inside, hemp batt insulation is used, topped with a waterproof membrane, ensuring energy efficiency and protection from moisture.

Functional Elements

The design includes practical features that contribute to its sustainability goals. A septic tank manages waste efficiently, while hot water and gray water reservoirs support water usage. There is also a rainwater reservoir for collecting and storing water. These elements emphasize a focus on effective resource management, allowing the house to operate with minimal environmental impact.

The Eco-Wedge House stands out as a well-considered design that balances practicality with ecological responsibility. Every detail serves a purpose, reflecting a commitment to sustainable living while maintaining comfort and functionality.

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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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