
The atrium roof of India's largest mall 'Mantri Square Mall' in Bangalore is made up of tensile membrane. These membranes are of light weight and flexible and can span attractively over large distances.
Tensile Membrane Roof

Designed by Bentel and executed by Shadeflex, the roof of Mantri Square Mall sprawl over an area of 60,000 sft. The length of atrium roof is 135 metres-18 large span structures spread over 45 metres. One of the specialties of this world-class project is its roof which is made up of tensile membranes- translucent and opaque membrane and also of laminated tempered/toughened glass.
The entire roof work of the mall is made of individually secured truss work and is not interconnected. Each truss is consisting of two bent steel tubes of hollow section supported by tensioned structural cables and tension rods. The entire roof structure is flashed to the vertical façade with flaps. At night, the translucent membranes are lit up sequentially in various colors giving an ethereal look adding to its enchantment. During the day, sunlight filtering in through the translucent membranes gives it a beautiful glow.
The entire detailed engineering as well as the installation was the commendable feat in the project. As due to non-reach of the crane to most of the roof area, the finished steel trusses were assembled to one side of the building and then shifted to positions with the help of rails.
Shadeflex
Shadeflex India Pvt Ltd. (Previously Induslink Allies India Pvt. Ltd.) established in 1999, promoted by experienced engineering and management professionals with over 15 years international exposure to technical membranes are focused on providing Interior & Exterior Sun and Rain Protection Solutions with Membrane Tension and Cladding Structures.
Shadeflex has been instrumental in realizing Membrane Structure projects covering over 500,000 sq feet till date in the Indian market having executed projects covering a wide variety of architectural membranes (PES, PTFE, Screen etc) for clients like UB group, Sahara India-Amby Valley, TESCO, BIOCON, Fun Cinemas, NXP , Brigade group, Bangalore Central Mall, KB Mall, Swiss Club, Hughes Software, HP, Embassy Group, CISCO, GE ITC, Silicon County, Philips Software, RMZ Builders, NCBS, Windsor Manor Hotel, Barbeque Nation, Target BPO, Ace Group in Bangalore, Sigma Mall, Franklin Templeton- Hyderabad, The Leela-Goa and Mantri Mall to name a few. The group is currently executing a wide range of complex projects within India & abroad.