Research Article

Construction and Evaluation of Rainwater Harvesting System for Domestic Use in a Remote and Rural Area of Khulna, Bangladesh

Table 1

Runoff coefficients for traditional roofing materials.

TypeRunoff coefficient

Galvanized iron sheet>0.9
Corrugated metal sheet0.7–0.9
Tiles0.8-0.9
Concrete0.6–0.8
Brick pavement0.5-0.6
Rocky natural catchment0.2–0.5
Soil with slope0.0–0.3
Green area0.05–0.1