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Curved Roof Design Incorporating Photovoltaics and Thermal Mass in a Community Greenhouse

Authors:
Orie Okachi, Yuichi Sumii, Kyota Shimizu, YILI YANG
Curved Roof Design Incorporating Photovoltaics and Thermal Mass in a Community Greenhouse

Project in-detail

With a bowl-shaped structure that maximizes solar reflection and incorporates thermal mass, the design functions as a community-centered greenhouse, redefining approaches to sustainable living.
5 key facts about this project
01
Bowl-shaped structure designed for optimal solar light capture.
02
Integration of charred wooden shingles for enhanced durability and aesthetics.
03
Use of cross-laminated timber panels to improve structural performance.
04
Community spaces seamlessly connected to adjacent greenhouse areas.
05
Seasonal design considerations informing the building's orientation and layout.
The project "Filled with Light" is an architectural design focused on maximizing natural sunlight through its unique form and material selection. Designed as a bowl-shaped structure, the building reflects an adaptive approach to integrating environmental conditions into its overall function and layout. The architectural concept serves both aesthetic and practical purposes, ensuring effective light capture while offering communal and agricultural spaces within the structure.

Unique Architectural Form
One of the most distinct features of this project is its bowl-like geometry. This structure utilizes the principles of sunlight reflection and collection, allowing it to maximize daylight exposure year-round. The design calculations accommodate seasonal variations, ensuring that both natural heating and illumination are optimized for the interior spaces. It stands in contrast to conventional angular buildings by promoting a continuous flow of light and space.

Functional Zoning and Layout
The internal organization of the project maintains a clear functional zoning. The central multipurpose hall serves as the primary gathering space, surrounded by diverse areas including a dining area, kitchen, and bathrooms, which promote social interaction. This layout is reinforced by the inclusion of plant-friendly environments, such as greenhouses, directly adjacent to communal spaces. The planning demonstrates an emphasis on both utility and community engagement, which distinguishes this building from typical residential or commercial designs.

Sustainable Material Choices
The project employs a selection of sustainable materials, including concrete for its thermal mass properties, glass for maximizing light penetration, and wood for internal furnishings. These materials support the overarching goal of reducing energy consumption while enhancing user comfort. The incorporation of photovoltaic elements also highlights a focus on renewable energy solutions, ensuring that the architectural strategies align with environmental sustainability objectives.

For further insights into the various elements of this project, including architectural plans, sections, and designs, explore the comprehensive presentation. Engaging with these materials offers a deeper understanding of how this architectural endeavor successfully combines form, function, and sustainability.
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MICROHOME
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100,000 € Prize Fund / Kingpsan Edition #10
Kinderspace
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Architecture for Children’s Development #3
Buildner's Unbuilt Award 2025
Buildner's Unbuilt Award 2025
100,000€ Prize / 2025

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

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
Early bird registration deadline 22 May 2025
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