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Circular Structure Crafted With Recycled PET Insulation for High-Altitude Shelter

Authors:
Rafael Atri, Rafael Atri, Rodrigo de la cerda, Abraham Cohen
Circular Structure Crafted With Recycled PET Insulation for High-Altitude Shelter

Project in-detail

Utilizing recycled PET for insulation and a circular design for enhanced wind resistance, the shelter provides a sustainable and functional refuge in a high-altitude environment.
5 key facts about this project
01
Utilizes recycled PET bottles as structural insulation to enhance thermal performance.
02
Incorporates a circular design for optimal wind resistance in harsh climates.
03
Modular layout allows for flexible usage and adapts to varying occupancy levels.
04
Features a wind energy system to power essential functions sustainably.
05
Emphasizes local materials and construction methods to minimize environmental impact.

## Overview

Located in the Himalayan region, the Mountain Hut project addresses the unique challenges of high-altitude living, providing essential shelter for trekkers and climbers navigating the rugged terrain. This design seeks to create a functional and inviting refuge that capitalizes on the surrounding natural environment while promoting self-sufficiency for its users. The hut's conceptual framework integrates practicality with aesthetic considerations, balancing the needs for durability and comfort in a harsh climate.

## Structural and Spatial Innovation

The hut employs a circular geometry to enhance structural stability and wind resilience, reducing the impact of extreme weather conditions while evoking traditional architectural forms common in mountainous cultures. The internal layout is designed for optimal user experience, featuring access points that facilitate movement through communal areas, bunk spaces, and private accommodations organized around a central core. This arrangement encourages social interaction among occupants, enhancing the sense of community.

## Material Selection and Sustainability

The choice of materials reflects a commitment to sustainable design practices suitable for the alpine environment. High-tech fabric provides a lightweight and weather-resistant outer covering, complemented by polyethylene tarp for insulation. Recycled PET bottles serve as thermal mass and structural components within the walls. Steel mesh and poles form the internal frame, while mud brick can be utilized where local conditions allow. Emphasizing local sourcing and minimal environmental impact, the construction process is designed to conserve resources while ensuring the long-term viability of the hut. Additionally, integrated systems for energy generation and water collection enhance operational independence, reinforcing its commitment to sustainability and self-sufficiency.

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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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