Taiyo Kogyo Corporation (Head Office: Setagaya-ku, Tokyo; Osaka Head Office: Yodogawa-ku, Osaka; President and CEO: Yuki Nomura), a company specializing in large membrane structures (tent structures), civil engineering, and logistics materials, was responsible for the membrane ceiling construction during the renovation of the Main Arena at Ikiiki Land Katano (Katano City, Osaka Prefecture). The facility reopened on May 1st. This project is characterized by its aim to reduce the load on structural members by replacing existing ceiling materials with lightweight membrane materials, while also creating a light and aesthetically superior space. The lightweight and flexible nature of the membrane material achieves both improved seismic safety and a comfortable arena environment, contributing to the enhanced value of the existing facility. Membrane ceiling above seating Ikiiki Land Katano Main Arena interior Improved seismic safety with a lightweight membrane ceiling Ikiiki Land Katano, completed in 1997 as a comprehensive sports facility for Katano City, underwent renovation of its main arena ceiling as part of a large-scale refurbishment project aimed at extending its lifespan. The existing ceiling was subject to the current law's "Specified Ceiling" regulations, making it a target for this renovation. Membrane ceilings are significantly lighter than conventional ceiling materials, a factor that was highly valued for its ability to reduce the load on existing structures, leading to its adoption. The flexible membrane material can follow seismic tremors and deformations, contributing to a reduced risk of ceiling material detachment. For renovations of existing facilities, the ability to enhance safety without placing a significant burden on the structural frame is one of the major advantages of membrane ceilings. Creating a comfortable arena space through design Membrane ceilings are light and possess high aesthetic qualities, enhancing the design of a space. Furthermore