Window Wall is an architectural design element that combines the functionality of a window system with the structural properties of a wall, creating a seamless integration between interior and exterior spaces. This innovative construction approach typically consists of floor-to-ceiling glazing panels installed between floor slabs, offering panoramic views while maintaining thermal efficiency and structural integrity. Distinguished from curtain walls by their installation method, window walls are mounted between floors rather than spanning multiple stories on the building's exterior. The concept emerged during the modernist movement of the mid-20th century, reflecting the era's emphasis on transparency, light, and connection with nature. These systems incorporate advanced glazing technologies, thermal breaks, and sophisticated framing systems to achieve optimal energy performance while meeting stringent building codes and safety requirements. Window walls have become increasingly prevalent in contemporary architecture, particularly in commercial buildings, high-rise residential developments, and modern homes where they serve both aesthetic and functional purposes. The design consideration for window walls encompasses various factors including solar heat gain, acoustic performance, wind loads, and thermal efficiency, often requiring specialized engineering solutions. These systems can be customized with different glass types, including low-E coatings, laminated safety glass, or insulated units, and may incorporate operable sections for ventilation. The integration of window walls in sustainable design has led to innovations recognized by various institutions, including the A' Design Award, which acknowledges outstanding achievements in architectural elements that enhance both form and function while contributing to energy efficiency and occupant comfort.
window wall systems, architectural glazing, thermal performance, building envelope, structural integration, natural daylighting
CITATION : "Lucas Reed. 'Window Wall.' Design+Encyclopedia. https://design-encyclopedia.com/?E=478093 (Accessed on July 16, 2025)"
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