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Magma Stones and Steel Structure Shaping Sustainable Exhibition Space

Authors:
Moneef Alhajjaj, Mustafa Ahmad, Nour Abdel Hafez
Magma Stones and Steel Structure Shaping Sustainable Exhibition Space
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Constructed with magma stones and a steel structure, the design creates a sustainable exhibition space that integrates seamlessly with the geothermal landscape of Hverfjall Volcano and Mývatn Lake.
5 key facts about this project
01
Magma stones are used prominently in the building’s facade.
02
The design captures and reuses rainwater through a dual collection system.
03
A geothermal power system eliminates reliance on fossil fuels.
04
The central axis can function as an exhibition area, encouraging public engagement.
05
Skylights enhance natural light while maintaining energy efficiency.

The design integrates naturally with its environment, located between Hverfjall Volcano and Mývatn Lake. This particular setting shapes its overall concept, creating a strong connection between these notable features of the landscape. The building is organized along an axis that links the distinct areas, providing spaces that serve both private activities and public engagement. It functions not only as a structure but also as a bridge between nature and human experience.

Geothermal Power Integration

A key feature of the design is its geothermal power system, which supports sustainability efforts. This technology harnesses the earth's heat without depending on fossil fuels. Essential components include production and injection wells, a turbine, generator, and heat exchanger. The method of reusing hot water or steam emphasizes a commitment to renewable energy.

Spatial Organization

Thoughtful spatial organization enhances the building's usability. Upon entering, visitors encounter a central axis that can host exhibitions and serve as a gathering point. Surrounding this are important spaces, including a lobby, administrative offices, exhibition areas, and restrooms. This layout promotes ease of movement and access, making it straightforward for people to navigate.

Structural Components and Materials

The design includes various structural elements that contribute to its integrity. Skylights provide natural light throughout the interior. Magma stones and a steel structure are used to blend aesthetics with functionality. The base wall and floors add to the overall strength, ensuring that the building can withstand environmental challenges.

Rainwater Management System

An innovative aspect of the design is the dual rainwater collection system. Rain falling on the roof is funneled into storage tanks for reuse. Additionally, water running off windows and walls is captured, further enhancing sustainability efforts. This system shows a practical approach to resource management and demonstrates an awareness of the surrounding environment.

The building's details reflect a careful consideration of the unique landscape, illustrating a harmonious relationship between architecture and nature. Features showcase the local geology while facilitating human activities, combining natural elements with functional design.

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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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