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Dynamic ETFE Membrane Roof with Steel Framework in Sustainable Cabin Design

Dynamic ETFE Membrane Roof with Steel Framework in Sustainable Cabin Design

Project in-detail

A dynamic ETFE membrane roof, supported by a flexible steel framework, adapts to seasonal snowfall while providing a sustainable retreat for outdoor enthusiasts in Iceland's rugged landscape.
5 key facts about this project
01
Dynamic roof adjusts to seasonal snowfall, enhancing structural efficiency.
02
Hybrid ETFE membrane allows for increased light and thermal performance.
03
Flexible steel framework accommodates changes in weather conditions.
04
Interior spaces utilize local wood to create a warm atmosphere.
05
Minimal ground impact preserves the natural landscape around the cabin.

### Project Overview
Located in the Myvatn region of Iceland, the Snow Melt Cabin is designed to serve as a retreat for hikers and skiers while responding to the challenges posed by the surrounding natural environment. The intent behind the design is to create a connection between the built structure and its dynamic landscape, incorporating features that adapt to seasonal variations.

### Architectural Strategy
The design integrates four distinct building types into a cohesive form, prioritizing both practicality and aesthetic coherence. The upwardly expanding roof shape minimizes the cabin's footprint, preserving a greater expanse of the natural landscape. This approach emphasizes sustainability, with each component—both external and internal—carefully orchestrated to enhance the user experience in relation to the environment.

### Material Applications
A selection of materials was chosen for their functional and ecological qualities.
- **Steel Spring Frame**: This component provides structural flexibility, enabling the roof to respond effectively to varying snow loads and weather conditions.
- **ETFE Membrane**: Lightweight and durable, this material facilitates air circulation and snow melt while contributing positively to thermal performance.
- **High-Performance Glazing**: Designed to optimize natural light and views, this glazing fosters a strong connection between indoor spaces and the surrounding landscape.
- **Wood Elements**: Likely sourced from pine or similar species, wood is used in wall systems and furniture, adding warmth and comfort.
- **Concrete**: Utilized in the foundation, concrete ensures durability and structural integrity in harsh climatic conditions.

### Innovative Snow Melting Mechanism
A notable feature of the cabin is its adaptive snow melting mechanism, designed to optimize energy efficiency. The roof structure adjusts seasonally—extending in summer to enhance airflow and compressing in winter to allow for controlled snow accumulation. As snow gathers, the system’s form modifies, enabling gradual melting and minimizing the heating requirements for the cabin, ultimately resulting in reduced energy consumption.

### Design Features and User Experience
The internal layout includes essential amenities such as changing rooms, showers, and warming areas, reflecting a thoughtful distribution to enhance user flow and functionality. Despite its compact dimensions, the cabin creates a spacious and inviting atmosphere, balancing comfort with the exterior's starkness. The geometric roofline not only fulfills practical needs but also contributes to the building's overall aesthetic, promoting minimal disruption to the existing ecosystem while accommodating visitors’ requirements.

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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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