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Biodegradable Vinyl Toilets with UV-Reflective Structure for Climbers

Authors:
Youna Lee, Hyunjin Lee, Eugene Shim
Biodegradable Vinyl Toilets with UV-Reflective Structure for Climbers

Project in-detail

Using a combination of biodegradable vinyl and UV-reflective materials, the modular toilet system provides climbers on Mt. Everest with essential sanitation solutions while minimizing environmental impact.
5 key facts about this project
01
Modular units are easily disassembled for transport in extreme conditions.
02
Toilet units utilize zippers for quick assembly and operation.
03
Sky-watching facilities enhance the climbing experience at high altitudes.
04
Biodegradable materials ensure minimal environmental impact during use.
05
Units are strategically located along nine key points from base camp to summit.

The design enhances the experience of climbers on Mt. Everest through a modular toilet system that meets essential needs in extreme conditions. The project combines practical design with a flexible approach, focusing on the concept of "folded moments." This idea represents the dreams and aspirations that climbers hold. The structures are easy to transport and adaptable to the challenges of the rugged Himalayan landscape.

Modular units

Lightweight modular toilet units are at the center of the design. Each unit features a zipper connection system, which allows for quick assembly and disassembly. This makes it easier for climbers to manage sanitation in tough conditions. The units are distributed across nine key locations from base camp to the summit. This ensures that climbers have access to necessary facilities while promoting environmental care.

Functional elements

The system includes several important components, such as the toilet unit, sky-watching unit, and light unit. The toilet unit provides a crucial sanitation function. The sky-watching unit invites climbers to take a moment to connect with nature and enjoy the night sky. The light unit provides illumination, addressing safety needs during nighttime travel and reducing fear among climbers.

Materiality and adaptability

The units use UV-reflective nylon, a material that withstands severe weather typical at high altitudes. The toilet cover is made from biodegradable vinyl, reflecting a commitment to sustainability. Adaptability is a key feature, as multiple units can be combined according to specific locations. A circular unit design fits into limited spaces, while a contour unit shape adjusts to uneven terrains, ensuring versatility in various environments.

Incorporating thoughtful design detail

Each unit serves not just a practical function but also encourages moments of reflection and peace in the vast landscape. Positioned thoughtfully, the units create spaces where climbers can pause and appreciate their surroundings, even in the midst of their challenging ascent. The design elevates the user experience while remaining grounded in the practical demands of its environment.

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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

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