International Style vs Italian Rationalism
インターナショナル・スタイル / イタリア合理主義
Both sit in Modern Architecture, so the question is not what they belong to but how they behave. Both are read here as style. They are reached for with some of the same intent, which is where they get confused.
International Style
Strips ornament and aims at a universal architectural language crossing borders: the box, the free plan, steel, concrete and glass.
Italian Rationalism
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An Italian movement that set out to make the abstraction of modern architecture and the classicism of the Mediterranean hold at the same time. What looks like a white box is in fact carrying ancient proportion in the rhythm of its bays, the depth of its overhangs and the planes of its marble. A textbook for refusing to set the modern against the traditional.
| International Style | Italian Rationalism | |
|---|---|---|
| Era | 1920s–1960s | 1926–1943 |
| Family | Modern Architecture | Modern Architecture |
| Kind | Style | Style |
| Cues | Rectangular volumes / Glass planes / No ornament / The free plan | White volumes and a regular rhythm of bays / Deep overhangs and bands of shadow / Marble set against glass / Classical proportion, translated |
| Best used for | Corporate headquarters and civic buildings that must earn trust through proportion, not ornament. · Long life offices and galleries whose partitions move as programs change. | Architectural and interior identity that must feel contemporary and rooted at once, for hotels, cultural buildings and heritage brands · Grid design, where the rhythm of bays translates directly into a column structure that stays classical while reading as modern |
| Type | Align sans serif signs to the column grid, flush with the wall. | A geometric sans set to the same module as the bays, with the leading derived from the same proportion. |
| Composition | Carry floors on columns so plan and facade both stay free. | A strict frontal grid whose bays are equal and whose voids are not, so that the rhythm is regular and the reading is not. |
| Material | Steel and concrete frame, white rendered planes, large sheets of glass. | White render against polished marble and plate glass, with reveals deep enough to cast a real shadow line. |
| Caution | A white box alone misses the structure, free plan, industrial materials and social program, and ornament stripped without tuned proportion and detail reads as cheapness, leaving openings with no reason for their position. | Keeping the white box and dropping the proportion: without the underlying ratios it is generic modernism, and the whole argument of these buildings was that the ratios were still present. |