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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