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Thermal Mass and Natural Ventilation in Recycled Timber Retreat

Authors:
Long Kwan, Wai Yin Ryan Tung, Ching Tao Albert Leung, Ho Yin Cheung
Thermal Mass and Natural Ventilation in Recycled Timber Retreat

Project in-detail

Recycled timber forms a resilient structure designed for optimal thermal performance and passive ventilation, creating a sustainable retreat that seamlessly integrates with its forested surroundings.
5 key facts about this project
01
Recycled timber is utilized throughout the structure to enhance sustainability.
02
Cross-laminated panels provide superior insulation and structural integrity.
03
Charred wooden shingles ensure durability while minimizing maintenance needs.
04
Natural ventilation is achieved through a carefully designed passive airflow system.
05
The bent A-frame design optimizes thermal performance and aesthetic appeal.

## Project Overview

"The Hearth" is positioned within a densely forested area, designed to facilitate retreat experiences that foster a reconnection with nature. The architectural concept prioritizes a symbiotic relationship between the built environment and the natural landscape, incorporating advanced sustainability measures and thermal efficiency to ensure occupant comfort in varying climatic conditions. The design focuses on functionality while addressing contemporary ecological considerations.

### Spatial Engagement and User Experience

The layout of "The Hearth" promotes diverse spatial interactions, with distinct zones tailored for various activities, including social gatherings, solitary reflection, and creative pursuits. Central communal areas are oriented around the decentralized hearth, encouraging social connectivity while private spaces are intentionally designed for tranquility. Generous glazing provides unobstructed views of the surrounding forest, reinforcing the connection between indoor and outdoor environments and allowing natural light to penetrate deep within the interiors.

### Sustainable Materiality

The project utilizes an assortment of sustainable materials that reflect its ecological ethos. QuadCore LEC insulated panels offer exceptional energy efficiency through lightweight construction, while Trofikat™ vinyl ceiling tiles are crafted from recycled materials, contributing to the aesthetic and sustainability goals. Solatube tubular skylights enhance daylighting, reducing dependence on artificial illumination. Additionally, locally sourced recycled timber structures and polycarbonate panels facilitate thermal management while maintaining natural light access. Concrete cores are employed for both structural integrity and thermal mass, while integrated rainwater harvesting systems and clay plaster finishes further emphasize the project's commitment to sustainability.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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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

Enter an open architecture
competition now

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Buildner's Unbuilt Award 2025
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100,000 € Prize Fund / Kingpsan Edition #10
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