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Interior Design
 
role of jali ( perforated screen) in contemporary interiors.
i would like to understand and know whether jali's are still carried forwards as an element in interior spaces or the role has changed or modified. or the complete existence of jali has gone away from the dictionary of contemporary interiors.
Smita Agrawal
Responses
 
role of jali ( perforated screen) in contemporary interiors.
Smita, an interesting thought. Semi-permeable walls are a useful way of separating and dividing up spaces.
Frank John Snelling
role of jali ( perforated screen) in contemporary interiors.
i would like to know whether the exterior porous wall seen in the projects like:
Project: South Asian Human Rights Documentation Center
Designer: Anagram Architects
Location: New Delhi, India 2008
will also come under the same category or not. what is the role of such undulating surface in interiors or there isnt any role to play.
Smita Agrawal
role of jali ( perforated screen) in contemporary interiors.
Hi Smita,

As Frank mentioned, Jali essentially does the Job of space division. An important element related to privacy. The way it has been used in traditional Islamic houses. But its use as an exterior element, apart from serving the purpose of privacy, is also to direclty interact with Sun, Wind and light. As can be seen in constructions in Rajasthan.

Am not sure how you are defining your "category", but I think you are trying to discuss the elimination of the functionality part of the Jali leaving it as mere "ornamental element" in the contemporary architecture/interiors. Is it so?
Sriraj Gokarakonda
role of jali ( perforated screen) in contemporary interiors.
The above image shows three typical usage of Jali. The top one is a Jali in an external wall, middle one is a Perforated (Jali) compound wall and the bottom one is use of Jali in the interiors.

Am posting the middle image again, because of low clarity in the above image.
Sriraj Gokarakonda
role of jali ( perforated screen) in contemporary interiors.
Sriraj, The thought which floats into my mind whenever semi-permeable vertical membranes are mentioned (whether made of wood, brick, etc), is that perhaps the "Venturi effect" of speeding up (air) flows through partial constriction may result in increasing air flow through screens?

In a similar fashion, I have heard that groups of high-rise blocks tend to funnel air, so this may be another example of increased wind speed?

I recall the "Venturi effect" from my classes at Technical college, although the application was for water flows.
Frank John Snelling
role of jali ( perforated screen) in contemporary interiors.
Yes Frank, Venturi effect. That is what exactly I was taught and also something I felt when visited such spaces. They provide shading without obstructing the wind movement. Jalis have been extensively used in the construction of houses, palaces and forts in the Indian state of Rajasthan, where the Thar desert lies.
Sriraj Gokarakonda
role of jali ( perforated screen) in contemporary interiors.
Sriraj, Thank you for the confirmation, I feel cool already. :)

Now for a chicken and egg question. Which came first? The use of the Jali for climate comfort? or The use of the Jali for cultural reasons?
Frank John Snelling
role of jali ( perforated screen) in contemporary interiors.
Climate and culture are ofcourse interwoven. But all the world cultures we know today are very young compared to the prevailing climate in those places where these cultures were born, nurtured and practiced. Am a strong believer of Nature, so nature first culture next.
Sriraj Gokarakonda
role of jali ( perforated screen) in contemporary interiors.
thanks both frank and sriraj for ur comments
yes sriraj you are right i intend to know more about the functional aspect of jali's and exactly even i felt the same that it increases the wind flow when i visited hawa mahal jaipur.
i have same question as frank has which came first culture or climate and co these contemporary jalis or screen have cultural meaning and values attached or there is only one concern function. thats where i talk about ornamentation or wish to know meanings and importance of those patterns on the jalis..
so my question about contemporary jali's is still the same.
Smita Agrawal
role of jali ( perforated screen) in contemporary interiors.
Sriraj, I agree with you. :)

Smita, perhaps you might like to consider similar openwork designs? I ask because there is an excellent book "Chinese Lattice Designs" by Dover Pubs Inc, written by Dye about 150 years ago, so the data is from traditional Chinese designs.

For one project on my degree (in Architecture), I enlarged one of the images of a lattice (a "windmill" pattern)from the book, worked out the system of complex half-joints used, and then made an 18 inch square lattice, composed of quantities of carefully cut pieces of wood and fitted together like a jigsaw. :)

I mention the "windmill" pattern, because I believe it is used throughout the Middle East and I have seen a ceiling in Turkey in a tradtional timber-frame Ottoman house with the same repeating pattern
Frank John Snelling
role of jali ( perforated screen) in contemporary interiors.
Dear Smita, as you see, "jali" hasn't gone away in contemporary architecture;
its brimming with live almost everywhere (in the tropics, but not only);
have a look, besides Indian type jali, at traditional middle-eastern (arab and persian), japanese or, as in the picture, brasilien type jali.
Ben Huser
role of jali ( perforated screen) in contemporary interiors.
Ben, an excellent image and reminds me of what are traditionally called "shutters" in England which are mounted to swing on vertical hinges either side of windows or doors, with angled slats for through ventilation.
I think the Americans call such shutters "Jalousies" (probably from a French word as used in the south of early colonial America).

Furthermore, horizontal Venetian blinds are very similar, although used inside and not weatherproof and in America they have very strange ceiling to floor wide vertical blinds which can be used like full length curtains (Americans call curtains "drapes").
Frank John Snelling
role of jali ( perforated screen) in contemporary interiors.
hi smita ji,

jaali use definely is a beautiful way of responding to our very demanding indian climate. even great architects like leane novel and frank lloyd wright have used it in their masterpieces. jaali works on the principle of contration of hot air while passing through the small holes of jaali and coming out in the form of cool air.
hence such systems are found adequately in rajasthan and indian hot deserts ti bring in cool air. this is the main purpose.

again many other purposes like screening from heavy light invasion, privacy to a certain extent and partitions are attached to it.

nowadeays, as light is considered to describe a space in architecture, jaali system has again proved to be a great element as the kind of patterns created within the space, changes it accordingly from day to night! :)
i hiope my interpretation was valuable to you all. i did learn from your comments so thank you all :)
Akila Venkat
role of jali ( perforated screen) in contemporary interiors.
hey.. i am a 5th yr b.arch student. and my seminar topic is innovative use of jali in contemporary times. can i get some help. and the books i should refer. please rply asap..
Merlyn James
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