What it's about:
About 65 million people across India live in slums, according to 2011 census data. Often their unstable dwellings are made of tin or concrete, so residents find them too hot in summer, freezing in winter, and open to the rain during monsoon season.
An Indian company, Modroof, has designed modular roof panels made from waste, pulped cardboard and natural fibres that are both sturdy and waterproof.
The roofs are recycling waste to improve living conditions for households.
Why it's noteworthy:
Using waste to create safe and sturdy dwellings is a sustainable and cost-effective way to ensure residents can be comfortable and productive in their homes and communities.
In the long term, Indian Prime Minister Narendra Modi has vowed to eradicate slum dwellings. The government has a programme to build 20 million affordable homes in urban areas by 2020.
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