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Perforated Aluminum Facade and Rainwater Harvesting in Sustainable Modular Shelter

Perforated Aluminum Facade and Rainwater Harvesting in Sustainable Modular Shelter
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Utilizing a perforated aluminum facade and an efficient rainwater harvesting system, the design creates a versatile modular shelter that adapts to diverse climatic conditions.
5 key facts about this project
01
Utilizes perforated aluminum panels for enhanced ventilation and light control.
02
Incorporates a rainwater harvesting system for sustainable water management.
03
Designed with a flexible modular structure for efficient transportation and assembly.
04
Features double-glazed thermal glass to optimize energy efficiency and climate response.
05
Employs polyurethane insulation for superior thermal performance in various conditions.

### Overview
The 4Season Shelter is designed as an adaptable structure capable of providing year-round living solutions across diverse climatic environments, ranging from forests to arid deserts. Its intent is to address the needs for temporary habitation while prioritizing ecological sensitivity and energy independence. The project incorporates advanced materials and technologies that facilitate both functionality and aesthetic coherence with surrounding landscapes.

### Architectural Form and Spatial Strategy
Distinctive architectural features define the exterior, prominently including perforated metal panels that create dynamic internal light patterns while serving as effective passive solar shading elements. The interior layout is organized around an open-concept design that integrates living spaces—including a kitchen, living room, bedroom, and terrace—encouraging interaction with the natural environment through expansive glazing that offers panoramic views. This layout promotes versatility and comfort, suitable for various user requirements.

### Materiality and Sustainability
The shelter's facade utilizes perforated aluminum panels, contributing to ventilation and privacy. A robust steel frame supports modular units, enhancing durability, while double-glazed thermal glass assists in thermal regulation. Polyurethane insulation optimizes energy efficiency, and KINSAPAN solar panels on the roof harness renewable energy for self-sustainability. Furthermore, a rainwater harvesting system collects and stores water for reuse, complemented by a lithium-ion battery system that ensures energy availability during periods without sunlight. Passive heating and cooling strategies are integrated through adjustable sun protection panels, optimizing internal climate conditions throughout varying seasons.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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Competition organisers

The Buildner’s Unbuilt Award 2025 is an international architecture competition dedicated to recognizing and celebrating the value of unrealized architectural designs. It invites architects, designers, and students worldwide to submit visionary projects that have not yet been constructed, highlighting the power of ideas and the creativity behind the design process. By focusing on unbuilt work, the competition aims to bring forward concepts that shape the future of architecture and push the boundaries of the profession. 

Participants can compete in three categories based on project scale: Small Wonders (up to 100 m²), Medium Marvels (101–999 m²), and Large Visions (over 1,000 m²). Each category winner will receive €20,000, and additional prizes include honorable mentions, student awards, and a special Best Presentation Award. Winning projects will gain significant international exposure through Buildner’s publicity campaign and a feature article on ArchDaily, providing a unique opportunity to showcase creative ideas to a global audience. 

The Buildner’s Unbuilt Award 2025 encourages entrants to submit any type of unbuilt project, from conceptual visions to detailed designs, celebrating bold innovation without the constraints of realization. Important deadlines: registration closes on October 30, 2025; submissions are due by November 20, 2025; winners will be announced on December 17, 2025.

Buildner's Unbuilt Award 2025

Celebrating your unbuilt architecture visions with a €100,000 prize

100,000€ Prize / 2025 ideas COMPETITION
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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