Performance Glazing: The Latest Architecture and News

Our contemporary society has been witnessing a surge in skyscraper construction in urban centers worldwide for various reasons—including engineering advancements, increased urban density, space constraints, and, arguably, a competitive drive for building the tallest structures. The allure of all-glass facades and the pursuit of curtain walls with larger panes of continuous glass have often come at the cost of functionality.

In these towers, operable windows are sacrificed for aesthetics and expansive views, with a central core layout that maximizes 360-degree views while creating architectural "solar heat-gain monsters." Without natural or cross ventilation, these glass skyscrapers trap significant heat from solar radiation within habitable spaces, relying almost exclusively on mechanical HVAC systems to cool these spaces. This raises the question: is passive ventilation strategy becoming obsolete in high-rise design, or can operable systems be integrated effectively into our high-tech towers?

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The question, "How can we control natural light in interior spaces?" is fundamental in architecture. Unregulated direct sunlight can cause discomfort such as visual strain and undesirable heat gains. Therefore, it is crucial to control its entry effectively. Some design solutions include installing shading devices, planning spatial orientation, and building forms for indirect natural light. Window treatments like films or heat-reflective glazing can also be used.

However, there are innovative strategies to control natural light more efficiently through advanced glazing panels like the Kalwall 175CW. This translucent insulated glazing unit is compatible with most third-party curtain wall systems. By manipulating the translucency of the glazed material, it's possible to influence the visual and thermal comfort of spaces. At the same time, this can enhance the architecture of modern spaces, adding substantial aesthetic and emotional value.

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Zaha Hadid Architects has revealed the design of the Daxia Tower, to be built in the High-Tech Economic and Technological Development Zone of Xi’an, one of China’s largest inland cities with a population nearing nine million people. The tower will mark the center of Xi’an’s business district and will include offices, retail, and ancillary facilities, all designed with data analytics and behavior modeling to ensure a balanced disposition of spaces.

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While glass is generally singled out as the weakest part of a building, it is not always true. With technological advances and the continuous innovations of the industry, there is glass that, even while allowing natural light to enter an environment, can protect the building from fire. Beyond fire, there are also other threats such as hot gases, smoke, and heat transmission, which put the safe evacuation of people and the protection of property at risk.