Rainwater Harvesting

Research

Rainwater Harvesting Yield Across 8 Indian Climate Zones — IS 15797 + CGWB + IMD
Field measurement of rainwater harvesting yield was conducted at 8 Indian sites spanning Hot-Dry, Warm-Humid, Composite, Temperate, and Cold climate zones over 60 months. Measured annual yield ranged from 280 L/m² (Jodhpur) to 2,640 L/m² (Cochin). Runoff coefficient for RCC roof:… Read more →

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Field measurement of rainwater harvesting yield was conducted at 8 Indian sites spanning Hot-Dry, Warm-Humid, Composite, Temperate, and Cold climate zones over 60 months. Measured annual yield ranged from 280 L/m² (Jodhpur) to 2,640 L/m² (Cochin). Runoff coefficient for RCC roof:…

Plumbing & Drainage

Rainwater Harvesting per CGWA and CPCB: Yield, Storage, and Recharge
Rainwater harvesting in India is no longer a green-building gesture — it is a CGWA mandate for every plot ≥ 100 m² in notified blocks (which now covers most of urban India). This article walks through Read more →

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Rainwater harvesting in India is no longer a green-building gesture — it is a CGWA mandate for every plot ≥ 100 m² in notified blocks (which now covers most of urban India). This article walks through

Plumbing & Drainage, Standards

Rainwater Drainage Pipe Sizing: IS 15797 + NBC 2016 + Storm Intensity Maps
A monsoon storm in Mumbai delivers 80-120 mm/hr peak intensity. Chennai's North-East monsoon: 100-150 mm/hr peak. A roof drainage system designed for "average" rainfall ponds, overflows, and floods oc Read more →

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A monsoon storm in Mumbai delivers 80-120 mm/hr peak intensity. Chennai’s North-East monsoon: 100-150 mm/hr peak. A roof drainage system designed for “average” rainfall ponds, overflows, and floods oc

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