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Design Competition for External Movable Shading

About the Design Competition

BEEP had organized a Design Competition for External Movable Shading to create innovative, India-specific designs and solutions. The project has provided technical assistance to the winning designs in the form prototype development and testing to make them finished articles which can be launched in the market.

The design competition was conducted for 2 categories named after the most common application in buildings:

  1. Residential Sector (simple shading system): The shading systems will block all solar radiation (heat as well as light). These are expected to be simple, low cost solutions which will find wider applications in residential buildings.
  2. Commercial Sector (shading and day-lighting system): The shading systems will block the heat component of solar radiation but will provide effective natural day-lighting. These should be sophisticated mechanisms (can include sensors and automation) which find more application in commercial office buildings.

The competition was structured in two stages for both sectors, namely, Design Stage (Stage 1) and Mock-up Stage (Stage 2).

At the design stage, the focus was primarily on creative and innovative designs and a list of design were finalized. During the mock-up stage, shortlisted designs were asked to develop working mock-up models to test their functionality and effectiveness.

Due importance was given to both aspects while deciding the final winners and winners were decided after completion of the mock-up stage.

Objectives of the Design Competition:

The objective of this competition is to help bring the India-centric external movable shading system designs to the domestic market so that architects, product designers, HVAC engineers and others to use these systems/concepts in the buildings that they are associated with.

Final Winners

Category Residential Category Commercial Category
Winner Fabric Twist by Payal Chaudhari and Anto Gloren Zula by Keyur Zaveri
Runner-up One-Fold by Banduksmithstudio VRLS by FACE
Second Runner-up Touch Me Not by Jurong Sustainable Urban Solution Not awarded

Jury members:

No. Stage 1: Design stage Stage 2: Mock-up stage
1 Mr. Ashok B. Lall, Principal, Ashok B. Lall Architects Mr. Ashok B. Lall, Principal, Ashok B. Lall Architects
2 Pierre Jaboyedoff, Head, PMTU, Indo-Swiss BEEP Pierre Jaboyedoff, Head, PMTU, Indo-Swiss BEEP
3 Prof Praveen Nahar, Senior Faculty of Industrial Design, NID Prof Praveen Nahar, Senior Faculty
4 ---- Mr. P.G. Ganapathy
About External Movable Shading Systems

What are External Movable Shading Systems
External Movable Shading Systems are installed on the windows and glass facade of buildings which dynamically control the solar heat ingress and the visual light transmission. Controlling the solar heat ingress has a significant impact on the cooling/HVAC load of the buildings. Sophesticated systems also provide natural day-light control. 

Why External Shading instead of Internal Shading
The Solar Heat Gain Coeffiecient (SHGC) of internal blinds is more than 40% while that of a external shading system is less than 12%. The diagrams below demonstrate the reason for this low SHGC and the significance of external shading systems. 

Internal Blinds External Blinds
As the shading system is behind the glass pane, the heat enters the building and the Solar Heat Gain Coefficient (SHGC) is more than 40% As the shading prevents a significant proportion of heat from entering the building, the SHGC can be reduced to less than 12%

Types of External Movable Shading Systems
Disclaimer: The motive of provide examples of movable shadings systems is to give the participant an idea about existing systems. This is not an exhaustive but instead an indicative list. The participant is recommended to use this only as a reference. The design competition promotes innovative, indigenous, India-specific designs. 

1) Simple Systems which provide only Shading

1.1) Wooden Shutters

1.2) Roller Blinds

1.3) Awnings

1.4) Fabric Blinds

2) Systems with Shading and Day-light control

2.1) Horizontal Lamela Blinds

2.2) Vertical Lamela Blinds

3) Example of Buildings in India with External Movable Shading Systems

IPR and Patent Infringement

Intellectual Property Right Ownership
Participant lawfully represents that the participant is the owner or authorised user of the intellectual Property Rights (IPR) of the submitted designs. No licenses, trademarks, inventions, copyrights, patents, or any other intellectual property rights, are implied or granted to third parties other than organisers on acceptance of these rules by the participant.

In all such submitted designs in which the participant is the owner, it is hereby confirmed that such participant shall continue to be the owner of the IPR including copyrights or patents during the duration of the competition unless the participant contracts otherwise.

IPR Protection for Participants
To protect the ownership of the IP in the submitted designs, organisers will take all reasonably foreseeable and necessary precautions and measures as the owner of the IPR would employ to its own Confidential Information of like importance, but not less than a reasonable degree of care. Organisers may disclose Confidential Information of the participant’s only to those of its employees or contractors who need to know such information. In addition, prior to any disclosure of such Confidential Information to any such employee or contractor, such employee or contractor shall be made aware of the confidential nature of the Confidential Information and shall execute, or shall already be bound by, a non-disclosure agreement containing terms and conditions consistent with the terms and conditions herein. Specifically, organisers have the Jury members and website hosting company sign a Non-Disclosure Agreement (NDA) w.r.t all participant confidential information provided to organisers including all Intellectual Property Rights during this Competition. Contracted website hosting company would ensure storage of participants files containing confidential information including all kinds of IPR on a secure server that is backed up regularly. 

While maintaining transparency with regard to declaring the results of the competition, no material design specific information would be made public by organiser so as to compromise the IPR submitted by the participant. Additionally, any public announcement involving submitted designs would be shared with the participant by the organisers and require the participants consent before making it public. 

Upon the completion of this Competition, the organizer will deliver to the participant all of the respective participant’s IPR or Confidential Information in tangible form that the organiser may have in its possession or control. The organizer however may retain one copy of the IPR/ Confidential Information in its legal files.

IP infringement by submitted designs
The participant will have to ensure that their designs do not infringe any IPR including any existing copyright or patent. The participant, by entering this competition declares to the best of their knowledge that the submitted designs do not infringe any third party IPR’s including but not limited to copyrights or patents.

Any IPR infringement of third party owners by any participant will lead to automatic disqualification of such participant from the competition.

In case of IPR infringement of any third party rights wherein the organisers would be made party to any proceedings or actions by the IPR holder, the participant agrees to indemnify organiser for all its losses and shall also be liable to bear the costs of defending the organiser.

Resource Package

1. Design Brief
The design brief can be downloaded at:

2. Software used for SHGC Calculation
Thermal performance of the system will be evaluated using Comfen Version 4.1 beta or the latest stable release. 
Comfen is free software by Lawrence Berkley National Laboratory and can be downloaded at

3. Software used for VLT Calculation
Visual Light Transmission of the designs will be evaluated using ReluxSuite 2014. It is free software by Relux Informatik AG

4. Useful links
LBNL’s work on solar heat gain can be found at:

A generic introduction to external movable shading systems:

This page is being constantly being updated by the organizing team. Please check back later for updates. Any significant updates will be informed to registered participants through email

Frequently Asked Questions

1. Why External Movable Shading Systems
External Movable Shading Systems provide reduction in solar heat gain through building facades and thereby can significantly reduce the cooling load. Sophisticated systems also have the ability to control day-lighting and provide a more natural habitat indoors.

2. Why the design competition 
BEEP has identified External Movable Shading Systems as one of the innovative building energy efficiency technologies which is ideally suitable for India’s predominantly composite climate. Despite it being a popular solution in Europe, this concept is fairly unknown in India. The competition has two motives. The first motive is to instigate architects, designers, engineers as individuals, team, or firms to develop creative, indigenous products suitable of Indian climatic conditions. The second motive to popularize this concept among this group so that they apply this technology in the buildings they design/build.

3. Why two categories of buildings 
Because Residential and Commercial are the two prominent electricity consuming building sectors and are inherently very different in terms of design and energy demand profile. Also, because expectations and paying capabilities of users in each category is vastly different.

4. Why two stage competition structure 
The competition has been structured into two stages: Design Stage and Mock-up stage. It has been done so as each stage has a definite goal. 

The design stage aims to provide the designer with full creative freedom to build innovative designs which can achieve desired performance and functions. 

The mock-up stage will evaluate the practicality and real world operability of the designs. 

For detailed evaluation criteria, 
please check

5. Who can participate 
This competition is open to all Indian citizens. Foreign nationals can participate as a part of a team, but the team will be required to have an Indian team leader. However an individual can only participate once, i.e. he can either participate as an individual or as part of any team or firm, but not both. From now on, each unit either an individual or a firm/team will be referred as the participant. 

The competition is aimed at participation from Architects, Product Designers, and Engineers. The event will be open to students and student teams as well. Entries are accepted from individuals, teams, companies, or organizations. In case of teams, companies, or organization, only one member needs to register for the event.

6. Number of entries per team 
Each participant can submit a maximum of two designs in each category.

7. How to participate 
The participant needs to register on and provide the details of all team members. 

The design can be uploaded by the participant at any time and saved as a draft. Changes can be made by the participant till the last date to the draft files. He can choose to submit the draft as final submission. If saved drafts are not submitted as final designs, the last saved draft will be treated as the submission.

8. What is the File Format for Design Submission 
All files which will be uploaded have to be in the pdf format. Please ensure the file uploaded by you can be opened with the Adobe Reader which can be downloaded from:

9. Who owns the IPR of the design 
The design remains the intellectual property of the participant. For details please refer to:

10. Prize Money 
Please refer to:

11. Further clarification 
If your query has not been answer in this FAQ or you are facing difficulty regarding registration and design submission, please drop a mail to and mark a copy to and we will respond to you at the earliest.