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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 Next House: USA — A Global Call to Reimagine the American Suburb

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Competition organisers

Buildner is launching The Next House: USA, a global architecture competition that challenges architects, designers, and thinkers to reimagine the American suburban home for the 21st century. For decades, the suburban house has symbolized comfort and stability, but today it often reflects excess, isolation, and environmental strain. This competition asks: how can the American home evolve to address climate urgency, economic pressures, and shifting social values?

Participants are tasked with designing a prototype home of no more than 1,500 sq ft (≈140 m²) for a household of two adults and one child. The design should be compact yet generous, adaptable, sustainable, affordable, and replicable across diverse U.S. contexts. More than a design exercise, the competition aims to spark a conversation about how homes can support healthier, smarter, and more connected communities.

The total prize fund is $20,000 USD. The final registration deadline is May 20, 2026, and winners will be announced on September 22, 2026. The Next House: USA invites architects, students, and visionaries worldwide to redefine what the American home means today—and what it should mean tomorrow.

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Early bird registration deadline 19 November 2025

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