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Dual-Layer Glass Facade Harmonizes with Geothermal Energy Use in Timber Retreat

Author:
Lorenzo Roncelli
Dual-Layer Glass Facade Harmonizes with Geothermal Energy Use in Timber Retreat
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A dual-layer glass facade enhances energy efficiency while providing unobstructed views of the surrounding Icelandic landscape in a timber retreat designed for hospitality and relaxation.
5 key facts about this project
01
Forged with a dual-layer glass facade that enhances light entry and insulation.
02
Incorporates geothermal energy systems for sustainable heating and hot water.
03
Features modular guest units with adaptable configurations for diverse visitor needs.
04
Utilizes charred wooden shingles for durability and aesthetic integration with nature.
05
Overlooks the Icelandic landscape, maximizing exposure to natural phenomena such as the northern lights.

### Overview

Located in Iceland, the Northern Mirror project reflects the region’s distinctive landscape and atmospheric conditions, including prolonged sunsets and northern lights. The design focuses on transparency, allowing occupants to engage with Iceland’s natural beauty while creating an immersive internal environment that enhances aesthetic and functional experiences.

### Spatial Organization

The layout strategically divides the building into functional zones. Public areas feature a spacious entrance that promotes relaxation and social interaction, complemented by accessible pathways connecting various sections. Private accommodations are designed as modular units that can host individuals or small groups, offering flexibility in use. Common spaces, including kitchens and dining areas, are designed to facilitate both communal activities and privacy, featuring large windows that enhance connectivity with the external surroundings.

Additionally, the roof is fitted with photovoltaic panels, reinforcing the project's commitment to sustainability by generating energy to support the building's needs.

### Material Selection

The materiality of the Northern Mirror is integral to its design ethos. Externally, double layers of glass enhance energy efficiency and sound insulation, while varying opacity levels cater to specific functional requirements within. Internally, white wood finishes provide warmth and contrast to the modern glass facade. A robust structural framework of steel profiles ensures durability without compromising the minimalist aesthetic. Opaque glass is strategically used to enhance privacy in guest modules, facilitating a balance between openness and seclusion.

This careful selection and integration of materials not only harmonize with the rugged landscape but also promote energy efficiency and environmental responsiveness.

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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.

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

100,000€ Prize / 2025 ideas COMPETITION
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