India · Ahmedabad · See the India profile · See the Ahmedabad profile
Top 89% 27/100 · Ask Evidence Copilot about this practice
Since 2012 a women-led NGO has promoted low-cost cool roofs in Ahmedabad slums — reflective paint (~₹2,500) and ModRoof — reported to cut indoor temperatures by roughly 3–6°C; ~3 million sq ft painted, but independent evaluation is limited.
Mahila Housing Trust (MHT) has promoted cool-roof options in low-income Ahmedabad settlements since 2012, alongside the city's Heat Action Plan. Options reported by Down To Earth include reflective white paint (about ₹2,500; 4–5°C reduction), ModRoof from recycled coconut husk and paper waste (about ₹27,000 for an average 9 sq m; 5–6°C; 25-year life; removable), bamboo roofs (₹14,000; up to 5°C), louvred ventilators (₹2,900; 2–5°C) and green roofing (₹500; 2.5°C). MHT has offered loans to over 200 households.
The World Bank reports about 3 million sq ft of roofs painted with engineered white paint. Reported temperature reductions vary between sources (about 3°C in a pilot to 7–8°C for some installations), and mostly come from the implementer and press reports rather than independent, controlled evaluations.
The removable design suits settlements where tenure insecurity and relocation are risks. Transferability depends on local roofing materials and financing.
Read the full analysis: https://www.downtoearth.org.in/urbanisation/why-innovative-cool-roofing-is-becoming-popular-among-ahmedabad-s-urban-poor-82523
Implementation detail (cost, timeline, staffing, conditions for success) is not yet available for this practice.
Do you run this practice? Claim it — verified implementers get a public contact pathway and can propose corrections.
Where this practice's information was retrieved from, and when.
Poland
Warsaw's Green Building Standard, mandatory for city-owned buildings since July 2025, requires every new municipal project to calculate a permeability-weighted …
Taiwan
Taipei's New Building Greening Rules require a 40-70% Green Plot Ratio on new construction, feeding Taiwan's island-wide EEWH certification system …
Singapore
Singapore's URA requires new developments to replace greenery displaced by their footprint through the LUSH programme, made mandatory in 2014; …
India
Tamil Nadu's 2003 ordinance made rooftop rainwater harvesting compulsory on every building; surveys recorded Chennai's groundwater table rising about 50% …
Open full copilot Grounded in cited practices — always check the sources.