April 29, 2017

Hyderabad: Just a few days into summer and the mercury has already been soaring steadily and offering a glimpse of what is in store for the days ahead. Even hours spent without venturing out in the hot sun but staying indoors at home or office have started to leave one exhausted from the heat effects. And completely depending on the air-conditioner, cooler or fans has its own inevitable consquence, the power meter hopping away merrily and printing out a monthly electricity bill that leaves one dismayed. Are there any energy-efficient options that not only throws a shield against the piercing summer sunrays but are also cost-effectvie? Cool-roofs could be one such option.

A workshop in the city held at Administrative Staff College of India (ASCI) this week had experts discussing and deliberating on the concept of cool-roofs.

David B Goldstein, Co-director Energy Programme, Natural Resources Defense Council, US, who delivered a talk on ‘Cool Roofs – Technology, Policy and Implementation’ said Hyderabad can lead by example by making cool-roofs mandatory for all public buildings. “The city can develop resources for training on cool-roofs installation and also develop educational and promotion materials to initiate awareness campaign for cool roofs,” he said.

cool roof

In his presentation, Dr Vishal Garg, Associate Professor, International Institute of Information Technology, Hyderabad (IIITH), described a cool roof as one designed to reflect more sunlight and absorb less heat than a standard roof. “These can be made of a highly reflective type of paint, a simple sheet covering or highly reflective tiles or shingles,” he said.

“With rising temperatures and increased frequency of heat waves, cool-roofs have the potential to provide affordable cooling for millions without access to air conditioning and other more expensive cooling resources,” Dr Garg said.

The National Resources Defense Council (NRDC) and Administrative Staff College of India (ASCI) are now embarking to kick-start the work on city Cool-Roofs Policy Programme in Hyderabad.

Appreciating the efforts of NRDC and ASCI aiming to enhance overall energy demand and save lives, Navin Mittal, Secretary, Municipal Administration and Urban Development said, the State government has been taking steps to maximize energy efficiency in buildings by moving towards phased adoption of the Energy Conservation Building Code (ECBC). “The cool-roofs programme can complement the efforts of State government in achieving energy efficiency,” he said.

Along with kick-starting Hyderabad’s Cool-Roofs Policy Programme, the workshop launched the pilot implementation of online compliance system wherein IAS Community Centre building, which is currently being designed, and will go through TS ECBC compliance process.

What is a cool roof?

A cool roof is a roofing system that delivers higher solar reflectance and higher thermal emittance than standard designed roofing products. Cool roofs are either white or some other lighter shade color


Written by Neetu Jain