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Gravitational Ventilation and Aluminum Cladding in a Traditional Herb Drying Barn

Author:
Peter Anschau
Gravitational Ventilation and Aluminum Cladding in a Traditional Herb Drying Barn
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Incorporating gravitational ventilation and aluminum cladding, the herb drying facility revitalizes a historic barn structure while maintaining its agricultural roots and promoting sustainable practices.
5 key facts about this project
01
Retains original north-south oriented barn walls for structural integrity.
02
Employs gravitational ventilation to optimize air flow without mechanical systems.
03
Integrates windcatching techniques to enhance natural cooling.
04
Utilizes aluminum cladding for durability and modern aesthetics.
05
Encourages community involvement through incremental construction methods.

The design focuses on adapting a historic barn structure for modern agricultural use. Located in an area with deep agricultural roots, the facility is primarily intended for drying herbs. By combining the old walls with new features, the design respects the heritage of the site while also addressing contemporary needs related to agriculture. It aims to promote sustainability and efficiency while fostering community use through a deliberate and organized layout.

Structural Integrity

Retaining the north-south oriented walls of the original barn is central to the design. These walls provide essential support while preserving the historical context of the structure. The thoughtful organization of the space allows for easy movement between different functional areas, including drying storage, workshops, living spaces, and mechanical rooms. This design encourages interaction among the various sections, making the building a multifunctional agricultural facility that is both practical and efficient.

Ventilation Strategies

Effective ventilation is key to the herb drying process. The design includes two main natural ventilation methods. Gravitational ventilation relies on the heat from the external surfaces of the building, which causes air to rise and creates a cycle of air exchange without the need for mechanical systems. Additionally, windcatching is integrated into the design, drawing in fresh air while pushing out stale air. These methods work together to create an environment suitable for drying herbs while reducing energy consumption.

Material Selection

Careful choices in materials play a significant role in the overall design. Aluminum cladding has been chosen for the exterior of the new structure. This durable material supports the gravitational ventilation system and aligns with the project’s sustainability goals. The aluminum provides a modern look that complements the texture of the existing stone walls, creating a visual balance between the old and the new elements of the structure.

The design combines traditional agricultural practices with modern techniques, ensuring the facility is both useful and respectful of its history. This balance is highlighted by the simplicity of its form, allowing natural light to interact with the drying spaces, enhancing their functionality and character.

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The Buildner’s Unbuilt Award 2025: Celebrating Architectural Creativity and Visionary Unbuilt Designs with a Total Prize Fund of €100,000

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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
Prize 100,000 €
Eligibility Open to all
Final registration deadline 30 October 2025

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