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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
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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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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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