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- Design and Installation
- To select the gutter size appropriate to your requirements, two factors must be taken into consideration.
- Roof area
- Gutter Flow Capacity
- For further reference refer to
BS EN 12056-3:2000 ‘Roof drainage, layout and calculation'.
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- Roof Area
- The effective roof area can be calculated by using the following formula:
- (B + C) x length of Roof =Area in M2
- 2
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- Gutter Flow Capacity
- Gutter flow capacity is dependent upon system type, outlet position and whether gutter is laid level or to a specified fall. The table above gives the required information based upon a Rainfall intensity of 75mm per hour and recommendations from BS EN 12056-3:2000.
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Click here for the Flow Rate Calculator |
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