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Harnessing Snow for Thermal Regulation in a Lightweight ETFE Trekking Cabin

Author:
Joongho Lee
Harnessing Snow for Thermal Regulation in a Lightweight ETFE Trekking Cabin

Project in-detail

Constructed with a lightweight ETFE shell that utilizes the igloo effect for efficient thermal regulation, this portable cabin offers a sustainable shelter solution tailored for the rugged Icelandic terrain.
5 key facts about this project
01
Constructed with a lightweight ETFE shell that enables snow accumulation for increased insulation.
02
Utilizes the igloo effect to harness natural thermal energy for internal heating.
03
Designed for easy assembly and transport, making it ideal for remote trekking environments.
04
Features an angular geometric shape that mirrors glacial formations, enhancing visual integration.
05
Adapts interior spaces for various activities, offering flexibility in usage for different group sizes.

### Project Overview
The Glacial Tesseract is a portable trekking cabin designed for the unique and challenging conditions of Iceland. This project aims to provide a self-sufficient shelter that harmonizes with the snowy landscape while reflecting the natural phenomena of snow transitioning into water. It emphasizes minimal environmental impact and maximizes utility and comfort for users navigating these extreme terrains.

### Material Performance and Sustainability
The selection of materials for the Glacial Tesseract is critical to its performance in harsh weather conditions and commitment to sustainability. Ethylene Tetrafluoroethylene (ETFE) serves as the cabin's outer shell, offering lightweight durability and insulation. Its patterned surface promotes snow accumulation, which not only provides thermal insulation but also contributes to heat generation through the phenomenon known as the 'igloo effect.' Additionally, untreated snow functions as an energy source, enabling the cabin to utilize stored heat effectively. Structural poles, which support the ETFE, are strategically chosen to enhance stability on ice and snow-covered ground.

### User-Centric Design and Adaptability
The design incorporates a flexible internal layout that allows users to personalize the space according to their specific activities, whether for cooking, sleeping, or socializing. This adaptability is crucial for accommodating diverse group sizes and needs during excursions. Moreover, the cabin’s geometric form, inspired by crystalline ice structures, creates a visually distinctive presence that interacts with natural light throughout the day, enhancing the overall user experience while complementing the surrounding landscape. The structure also serves as a navigational tool at night, emitting a glow that aids visibility in the vast, featureless terrains.

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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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