New Membrane Roof Unveiled at OIMACHI TRACKS Complex in Oi-machi, Japan

OIMACHI TRACKS: A New Urban Hub in Oi-machi

On March 28, 2026, the new mixed-use facility "OIMACHI TRACKS" will officially open in front of Oi-machi Station in Tokyo. Developed by East Japan Railway Company (JR East), this complex combines office spaces, hotels, commercial establishments, and residences, potentially transforming the area into a vibrant urban center.

Innovative Membrane Roof Construction

Taiyo Kogyo Company, known for its expertise in large membrane structures and logistics materials, is responsible for constructing the pedestrian deck's membrane roof. This cutting-edge design is aimed at enhancing public enjoyment and accessibility, providing a weather-resistant environment for visitors.

The membrane roof spans approximately 446 square meters and utilizes translucent material that allows soft natural light to permeate the space. This innovative design is intended to create a bright and airy atmosphere, complementing the urban landscape and providing a welcoming spot for the community.

Self-Cleaning Properties for Long-Lasting Aesthetics

One of the standout features of this membrane roof is its self-cleaning ability, facilitated by a titanium dioxide photocatalytic coating. This technology breaks down organic dirt, ensuring that rainwater can wash away contaminants, thus maintaining the pristine white appearance of the structure over time. The roof's lightweight design allows for broader spans without the need for supporting columns, making it an architectural marvel

The roof's aesthetic appeal is further enhanced by a sleek design that minimizes visual noise for pedestrians. Using a unique backing system, the layout creates a continuous ceiling plane that feels expansive and inviting. Additionally, the architectural form includes four inverted pyramid shapes that contribute both visual interest and proper drainage, successfully merging form and function.

Location and Impact on the Community

Set to significantly boost the liveliness and connectivity in the surrounding area, the OIMACHI TRACKS complex will likely become a central node for activities in Oi-machi. By offering a modern pedestrian experience that integrates nature through natural light and self-cleaning technology, it promotes a safe and interactive environment for visitors.

Advanced Materials Ensure Durability

The roof employs a specialized PTFE membrane coated in a robust fluoropolymer, ensuring durability and resistance to environmental factors. This material has a long-standing reputation for performance, even showcased in historic structures like the Pavilion of the United States at the 1970 Expo in Japan.

As urban landscapes continue to evolve, Taiyo Kogyo remains committed to innovation in membrane technology, fostering sustainable and beautiful environments. Their work for OIMACHI TRACKS is just one of many projects enhancing public spaces, supporting a future where cities can balance aesthetic appeal with functional needs.

Conclusion

Taiyo Kogyo’s contribution to the OIMACHI TRACKS complex exemplifies their commitment to pioneering the advancement of membrane technology. With the implementation of features like the self-cleaning membrane roof, OIMACHI TRACKS is positioned to become a vital part of Oi-machi, attracting visitors and enhancing urban connectivity for many years to come.