What is a jali?
A jali is a perforated screen of stone, marble or wood with a fine openwork pattern. The screen is dotted with small openings in a geometric or floral motif, so that light and air come through while the view from outside is limited. The jali is a well-known element of Indian and Islamic architecture.
Function
The jali performs several tasks at once, which makes it especially useful in warm climates:
- Ventilation — the many openings let air through and have a cooling effect; the narrow holes speed up the air flow.
- Sun shading — the screen keeps out direct sun and softens the harsh light into pleasant, patterned shade.
- Privacy — it is hard to see in from outside, while occupants can still look out.
- Decoration — the openwork pattern is graceful and gives the facade depth and rhythm.
Application then and now
Classic jalis are found in Indian palaces, forts and tombs, often carved in finely worked sandstone or marble. The idea — a perforated screen that combines light, air and privacy — returns in modern architecture in perforated facade panels and sun-shading screens of brick, concrete, metal or ceramic. The jali is related to the claustra, a perforated wall of (concrete) blocks with the same function.
Related terms
- Claustra
- Openwork (ajour)
- Brise-soleil
- Facade cladding
- Brick
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