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Scissor Truss Roof and Natural Ventilation in Modular Living

Authors:
Jordanna Ebanks, Jaya Kader, Angela Johnson
Scissor Truss Roof and Natural Ventilation in Modular Living
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With a scissor truss roof that maximizes natural ventilation, the modular structure redefines flexible living while integrating sustainable features such as rainwater harvesting and photovoltaic systems.
5 key facts about this project
01
Modular design allows for easy expansion with additional modules.
02
Scissor truss roof system enhances structural stability and ventilation.
03
Rainwater harvesting integrated with a UV filtration system for sustainability.
04
Flexible interior layout accommodates various user needs and preferences.
05
Local material options adapt to different climates and cultural contexts.

Regen House represents an ecological approach to modular home design, focusing on simplicity and adaptability. Located in varied geographical settings, the project caters to the modern need for residential structures that integrate with their surroundings while providing functional living spaces. It encourages flexibility and customization, allowing residents to shape their homes according to personal requirements.

Structural Framework

The framework of Regen House uses standard dimensional wood, joined together to create structural integrity similar to heavy timber frame construction. Each column consists of four 4x4 posts that rest on concrete piers, forming a solid foundation for the structure. Running parallel to the building, 4x12 beams at each floor level support the overall load and maintain stability. A 4x10 beam is installed perpendicularly above the lower beam, alongside 2x10 floor joists. This configuration results in a strong and reliable structural system.

Roof Design and Ventilation

An important feature of Regen House is its roof structure, which employs a scissor truss system made from 2x10 and 2x8 members. This design not only shapes the building's profile but also enhances its thermal performance. An open screen system facilitates natural ventilation, allowing air to flow freely and reduce the need for mechanical cooling. The roof provides shading, promoting a comfortable indoor environment while ensuring efficient air circulation.

Adaptability and Sustainability

Regen House is designed for adaptability, allowing for the addition of modules to expand the living space. The base model can shift from a one-bedroom, one-bath layout to a two-bedroom, two-bath configuration by integrating additional modules. Sustainable features, such as rainwater harvesting systems and photovoltaic panels, support efficient resource use and energy independence. Rainwater can be collected and treated using a UV filtration system, further enhancing the project's commitment to sustainability.

Local Context Integration

The design of Regen House integrates well with its local context, maintaining a consistent core structure while allowing for variations in finishes based on geographic location. For homes in Southeast Asia, this could include bamboo walls and thatched roofs that are suited to the climate. In contrast, colder regions like Oregon would benefit from thicker insulation and robust siding to protect against harsh winter weather. This focus on local materials fosters a strong connection between the structure and its environment.

The thoughtful integration of features and structural elements illustrates a comprehensive approach to modern living spaces. Regen House stands as a model of how architecture can respond to both individual needs and environmental challenges, creating a balanced and practical habitat.

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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 €
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Final registration deadline 30 October 2025

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