- On June 5, 2026—World Environment Day—Tamil Nadu released India's first state-level Standard Operating Procedure (SOP) for the application of cool roof coatings.
- This document was prepared with the aim of promoting passive cooling measures to lower temperatures in homes, schools, and public buildings.
- Amidst the challenges of rising heat and climate change, this initiative is considered a significant step towards enhancing energy efficiency and improving comfort for citizens.
- Cool roof coating is a specialized surface layer characterized by high solar reflectance and high thermal emittance properties.
- It reflects solar heat striking the roof and reduces the amount of heat absorbed by the building.
- The new SOP outlines a 12-step implementation process for cool roof projects.
- It covers aspects such as feasibility assessment, material procurement, application methods, quality control, and routine maintenance.
- The document recommends the use of coatings with a Solar Reflective Index (SRI) of 102.
- This standard ensures that the materials used are capable of reflecting the maximum amount of solar heat.
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