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Translucent EFTE Façade With Integrated Rainwater Harvesting in a Timber-Centric Holiday Residence

Authors:
Ching-hsing Chan, Yifan Shen
Translucent EFTE Façade With Integrated Rainwater Harvesting in a Timber-Centric Holiday Residence

Project in-detail

A lightweight EFTE façade combined with a robust timber core creates a seasonal retreat that seamlessly integrates with its natural surroundings while maximizing energy efficiency and comfort.
5 key facts about this project
01
A dual-layer design with an EFTE exterior maximizes natural light while providing thermal insulation.
02
The structure utilizes a cable-stayed system for enhanced stability without increasing weight.
03
Rainwater harvesting is integrated into the design for sustainable resource management.
04
Timber core construction incorporates cross-laminated panels for improved structural efficiency.
05
Seasonal adaptability allows for flexible use as a family retreat throughout the year.
"The Cocoon" is an architectural design project located in Upstate New York, serving as a flexible holiday residence for a family. The project embodies a synthesis of form and function, where design responds effectively to the surrounding natural environment while addressing the varying climatic conditions prevalent in the region. The fundamental goal is to create a living space that adapts to seasonal changes, ensuring comfort and usability throughout the year.

The structure is characterized by its dual-layered approach, which consists of an outer enclosure made from Ethylene Tetrafluoroethylene (EFTE) and an inner core constructed from timber. This design not only provides robustness and transparency but also emphasizes energy efficiency through passive design strategies. The architectural layout fosters a seamless connection between indoor and outdoor environments, promoting an engaging living experience.

Unique Design Approaches in "The Cocoon"

The adaptability of "The Cocoon" is a defining feature that sets it apart from conventional residential designs. The lightweight EFTE layer allows for flexible arrangements, enabling the structure to transition from an open space in warmer months to a more enclosed environment during colder periods. This innovative use of materials emphasizes the project's commitment to sustainability, as EFTE provides durability with minimal weight, enhancing energy efficiency.

Incorporating a cable-stayed structural system, the design maintains stability without compromising its aesthetic qualities. This system ensures that the outer shell remains light while providing necessary support. Additionally, a rainwater harvesting system is integrated into the design, contributing to resource management and ecological sustainability.

Sustainable Practices and Materiality

The material choices reflect a comprehensive approach to environmental stewardship. The wooden core adds warmth and comfort while promoting renewable resource use. Insulation materials, such as fiberglass and foam board, are strategically employed to optimize thermal performance, ensuring that the residence remains comfortable in both summer and winter conditions. Furthermore, the inclusion of solar panels on the roof enhances energy efficiency, aligning with contemporary architectural standards focused on sustainability.

The combination of function, unique material applications, and thoughtful design elements makes "The Cocoon" a noteworthy example in modern architecture. For those interested in exploring further, detailed architectural plans, sections, and design elements can provide deeper insights into the project's innovative characteristics.
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MICROHOME
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100,000 € Prize Fund / Kingpsan Edition #10
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Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
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100,000€ Prize / 2025

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
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