Roof valleys concentrate runoff from intersecting slopes into high-velocity water channels. Learn the fluid mechanics

The Hydraulic Convergence: Sheet Runoff Velocity, Open-Metal Trough Sizing, and Splash Diverter Ribs in High-Volume Mountain Valleys

• October 2, 2026
• admin

Across complex multi-gable villas, colonial hill-station bungalows, and intersecting pavilion roofs in South India, the internal angle where two sloped planes intersect is known as the roof valley. While planar roof slopes disperse rainfall across a wide perimeter, valleys do the exact opposite: they concentrate sheet flow from two independent drainage catchments into a single, …