In the context of WWI and to address the massive housing shortage resulting from the conflict, the Dom-Ino modular structure, one of the most significant contributions of functionalism and designed by the Swiss designers Le Corbusier and Max Dubois, established concrete premises for a new vision of a lightweight structural model that optimizes the construction process. Thanks to the use of a reinforced concrete slab and column system, the Dom-Ino structure allowed for the flexible arrangement of elements in the floor plan and freed the facade from the limitations imposed by load-bearing walls.
This condition prompted the creation of architectural designs that not only integrated windows as functional elements but also as compositional. Thanks to technological innovations, windows with slender framings and wider openings were achieved, as exemplified in works such as Villa Savoye and Farnsworth House. While these proposals redefined the aesthetics of architecture, the technological limitations of the time presented challenges. Nowadays, the continuous development of windows with improved technical characteristics has led to the concept of the minimalist window, which has inspired three fundamental principles derived from this concept, conceived by Vitrocsa. These principles —transparency, functional variations, and advanced mechanisms— incorporate technological innovations while simultaneously blurring spatial boundaries. Each of them plays a key role in the design of spaces and together they significantly redefine the aesthetics of buildings and interiors.