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Fog-Capturing Home with Recycled PVC Cladding and Cross-Laminated Timber Panels

Authors:
Alvaro Rojas Vio, Constanza Grenett
Fog-Capturing Home with Recycled PVC Cladding and Cross-Laminated Timber Panels
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Utilizing a specialized fog-catching system and recycled PVC cladding, this home in Casablanca efficiently addresses water scarcity while providing a sustainable living environment.
5 key facts about this project
01
Fog-catching system captures atmospheric moisture for water supply.
02
Recycled PVC cladding enhances durability and reduces environmental impact.
03
Cross-laminated timber panels provide structural stability and thermal efficiency.
04
Modular design optimizes space while allowing for flexible living arrangements.
05
Passive heating and ventilation strategies improve energy performance throughout the year.

### Overview
Kamanchaca House is situated in Casablanca, Chile, where it addresses contemporary challenges such as climate change and water scarcity through innovative architectural design. The project emphasizes the utilization of local climatic conditions, specifically harnessing the Kamancha fog to capture atmospheric moisture and enhance the livability of the residence. Designed to be functional and cost-effective, the house seamlessly integrates thoughtful spatial organization with environmental consciousness.

### Spatial Strategy and Functionality
The internal layout of Kamanchaca House is oriented toward functionality, creating an intuitive flow between private and communal areas. The design utilizes an elongated hexagonal polyhedron form to optimize spatial interactions, promoting a cohesive living experience. The arrangement of the living spaces includes a well-equipped kitchenette, a multi-purpose living area, and a comfortable bedroom that engages with natural light and views of the surrounding landscape.

### Environmental Systems and Material Utilization
Key to Kamanchaca House is the incorporation of multiple environmental systems. The fog-catching mechanism captures approximately 4.3 liters of water per square meter per day, crucial for mitigating water scarcity in the region. Additionally, the structure employs passive design strategies, maximizing cross-ventilation through strategically placed windows to maintain energy efficiency. Material choices include recycled polyvinyl chloride for durability in roofing and facades, wood for warmth and aesthetics, and metal for structural resilience, ensuring compatibility with local climatic conditions. Solar photovoltaic systems and rainwater harvesting augment the sustainability measures, while integrated composting systems support waste recycling efforts, establishing a comprehensive approach to environmentally responsive living.

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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.

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