Rainwater harvesting slope roof

Designing a Sloped Shingle Roof for Efficient Rainwater Harvesting in Heavy Monsoon Zones

• September 8, 2026
• admin

In states receiving over 3,000 mm of annual rainfall, rainwater harvesting (RWH) is not just an eco-friendly feature—it is a regulatory requirement for building permits and a practical lifeline for recharging local groundwater tables. When homeowners transition from traditional concrete slabs to pitched roofs with architectural shingles, a frequent question emerges: Is runoff water from …