1. If you're looking to expand the usable area of an existing building without undergoing a major teardown and rebuild, consider adding a "vaulted ceiling" on top. It's not only cost-effective but also practical and aesthetically pleasing. Jinqiao's arched roofs have been added to the upper floors of some universities, creating activity rooms for clients. By simply adding a vault, the existing building's usable space is significantly increased, making it highly functional and very satisfying to the clients. The vault structure, due to its light weight, exerts minimal pressure on the existing foundation, requiring minimal structural changes and making the renovation process very convenient.

2. For instance, if your factory or warehouse is frequently troubled by issues like leaks, consider opting for an arched roof structure. This design boasts superior waterproofing and leakage prevention compared to concrete structures. As the joints are internally clipped during assembly, they naturally provide waterproofing. Therefore, as long as the waterproofing work at connections with the foundation and other areas is well-executed, leakage is unlikely.

For instance, the arched roofs of various sports venues offer an open space with unobstructed views, making them ideal for sports competitions.

4. For instance, in open-air structures like vegetable markets and building material markets, consider using a large number of "arched roofs." This structure is lightweight, which means the steel columns' cross-sections can be smaller, reducing steel usage and significantly cutting costs. Moreover, construction is convenient and fast, greatly shortening the construction period and, consequently, the payback period for the investment.