The Future Development Direction of High-End Façade Glass for Architectural Use

As the national strategy for energy conservation and emission reduction continues to advance, building energy efficiency, accounting for 30% of the total energy consumption in society, has garnered increasing public attention. Building energy efficiency is a highly integrated and systematic project, involving the implementation of regulations, architectural design, material selection, construction details, processing and installation, and even user behavior habits. Only when every stage ensures the correct approach and strict execution, building energy efficiency transcends mere catchy concepts and selling points, becoming a genuinely energy-efficient structure that withstands practical testing.

Steel frame glass curtain walls, as a special field within the glass curtain wall system, are suitable for large-span, spacious building facades and skylights. Due to steel's lower thermal conductivity compared to aluminum alloys, a transparent, aesthetically pleasing, and energy-efficient building exterior can be achieved through the selection of profiles and the construction of joints. The excellent fire-resistant properties of the outer steel frame allow the energy-saving curtain wall to also be fire-safe, thereby achieving a perfect unity of function and form.

In recent years, the application of glass curtain walls in architecture has become increasingly widespread. As components that not only bear the structural load of the building's exterior but also showcase its image, the energy-saving aspects of glass curtain walls often come under scrutiny. Technically, the energy efficiency of glass curtain walls is a comprehensive system. In addition to selecting the right type of glass, which occupies a significant area of the facade, a suitable support frame system, fasteners, seals, adhesives, and embedded components are also required. These interrelated components form a complete system.

Chemical toughening is a process that forms surface compressive stress on glass through ion exchange. This method is particularly suitable for glass with a thickness of 2-4mm. The advantages of chemically toughened glass include the absence of warping from high-temperature processes above the transformation temperature, resulting in the same surface flatness as the original glass sheet. Additionally, it offers improved strength and resistance to temperature changes, and can be appropriately cut. The drawback of chemical toughening is the potential for stress relaxation over time. However, protective processes are currently in place, making chemically toughened glass uniquely applicable and irreplaceable in certain applications compared to other strengthened glass varieties.