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Catchment Area

The effective catchment area for a gutter is determined not only by the plane area of the roof itself but also by the walls adjacent to the roof. When a wall is discharging on to a roof, half the surface area of that wall (up to a maximum height of 10 m), must be added to the catchment calculation.

Clause: 
005_003_001_000_000_000_000_000_000
Clause Number: 
5.3.1
5.3.1
/cop/roof-drainage/roof-drainage-design#catchment-area
Revision Category: 
2 - Editing and rearrangement
Revision Detail: 

Caluse has been completely revised. All calculations are now under a new clause Capacity Calculations.

Draft Clause: 
005_003_001_000_000_000_000_000_000