WINDOW RESEARCH INSTITUTE

Ribbon window

A wide window, introduced by Le Corbusier in his 1926-1927 “Five Points of Architecture,” which later became a hallmark of modern design. Along with the pilotis, roof garden, free plan, and free façade, the wide windows provided uninterrupted views and evenly distributed natural light throughout the building. By separating the frame structure from the exterior walls, windows are allowed to stretch horizontally across the façade. This design offers greater flexibility and a more open and modern architectural approach. Also known as a “ribbon window,” the wide window is discussed in depth in Bruno Reichlin’s The Pros and Cons of the Horizontal Window: The Perret-Le Corbusier Controversy (1984). Also called the horizontal window.

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