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Case Study:Landscape Waterproofing

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The Project

Tata Consultancy Services the leading IT services firm, developed 10,000-seat campus, Garima Park in Gandhinagar, Gujarat. The facility spread across 25.5 acres of land has a built-up area of 1.6 million square feet. It had to be developed as a “green” campus and had applied for a LEED Gold rating. Built with locally sourced red stone, a trademark feature of local architecture, the campus also used extensive technology to increase efficiency and reduce wastage.

The Solution

A successful, functional and aesthetic landscape can only be delivered through holistic design of a complete system. Inappropriate interface, poor installation and inadequate product selection can create weak points that are expensive to correct. The systems-based approach was essential in creating and maintaining the site landscaping and green roof. Fosroc Chemicals (I) Pvt. Ltd proposed a complete waterproofing solution with Proofex PGP system.

Waterproofing: The waterproofing membrane forms the core part of the landscape and provides permanent barrier that retains long-term resistance to root penetration. Selection of membrane type was based on factors such as structural loading, substrate type and material, fixing preferences and design detailing. This detailing to perimeters, outlets, upstands and protrusions through the podium slab too gets affected by the depth of the green roof build up.

Drainage System: The second key design consideration was the drainage requirement. For flat or shallow green roofing particularly, care was taken to ensure that rainwater is adequately drained to prevent potentially harmful pooling.

Benefits

Proofex PGP system yielded benefits to the client both in terms of aesthetics and sustainability.

Aesthetics: Landscaping improved the surrounding area with the presence of lush green environment. A green roof helped transform an underused and functional area into an attractive garden space that can be visited and enjoyed by building occupants.

Sustainability: Green roof acts as a thermal insulator to protect buildings from high external temperatures leading to reduced air-conditioning requirements and energy savings. The landscaping keeps surrounding areas cool and helps in storm water management. Rain water is captured and held within the growing media for release back into the atmosphere through evaporation. This decreases the amount of water run-off into local water systems by delaying and reducing peak storm water run-off rates and volumes, thereby lowering loads on drainage systems.

 

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