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Bioreceptive Roofing with Volcanic Stone and Hemp-Shiv Construction in Sustainable Nordic Dwelling

Authors:
Giulia Venanti, Tiziano Cattaneo, Xiongfei Xie, Clizia Caroli
Bioreceptive Roofing with Volcanic Stone and Hemp-Shiv Construction in Sustainable Nordic Dwelling

Project in-detail

Employing a bioreceptive roof and local volcanic stone, the design integrates sustainable materials like hemp-shiv to create a communal space that reflects Iceland's ecological landscape and cultural heritage.
5 key facts about this project
01
Utilizes bioreceptive roofing technology to enhance biodiversity and natural insulation.
02
Constructed with locally sourced volcanic stone to blend with the Icelandic terrain.
03
Incorporates hemp-shiv as a sustainable material for insulation and structure.
04
Features extensive glazing for panoramic views while minimizing energy consumption.
05
Designed with a bent A-frame structure to optimize thermal performance and local aesthetics.

## Architectural Analysis Report: Eco-Viking Longhouse Project

### Overview and Context

Located in the highlands of Iceland, the Eco-Viking Longhouse project synthesizes historical architectural elements with contemporary sustainable practices. Inspired by the traditional Viking longhouse, this design reflects a deep connection to Iceland's ecological landscapes while addressing the challenges posed by the Nordic climate. The intent is to create living spaces that harmonize with the natural environment, prioritizing sustainability and functionality.

### Spatial Organization

The layout of the Eco-Viking Longhouse emphasizes communal interaction and versatility. The ground floor features a central social area along with multifunctional spaces, including a rest area, equipment check station, and thermal pool. The first floor accommodates private resting areas and adaptable gathering spaces. Entrances are strategically placed on the long sides of the building to facilitate both flow and engagement with the surrounding landscape. Furthermore, the orientation of the structure is designed to optimize views toward significant scenic points, promoting a connection with Iceland's natural phenomena.

### Material Selection and Sustainability

A carefully curated selection of materials underpins the design, aligning with both aesthetic and ecological considerations. The use of Douglas fir for the structural frame provides stability while contributing a sense of warmth. Bio-composite hemp shiv and volcanic stone enhance sustainability and visual cohesion with the landscape. Innovative elements such as bio-receptive roof panels, which support plant growth and biodiversity, and gobion cages for insulation further strengthen the environmental integrity of the building. Energy efficiency is addressed through the integration of geothermal systems and solar energy, complemented by water reuse strategies from the thermal pool. Local materials not only reduce the project's carbon footprint but also foster connections with regional craftsmanship.

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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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