BS EN 12056-3 DOWNLOAD

April 22, 2020 By:

Flat Roofs The catchment area can be taken as the allowable area drained. Find Similar Items This product falls into the following categories. Where there are offsets or horizontal runs of pipes, the a separate calculation will be required to determine the capacity of the pipe system from roof level to ground level. Parapet or Eaves Gutter Pitch. As an aid we have chosen a selection of towns throughout the UK, and determined the design rainfall intensity for each town as follows: Learn more about the cookies we use and how to change your settings.

bs en 12056-3

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Calculate the actual area drained from the equations given below. Systeme d’evacuation des eaux pluviales, conception et calculs Title in German Schwerkraftenwaesserungsanlagen innerhalb von Gebaeuden.

Return period of 4. The Red document status indicator indicates that the document is an old version The document has likely been withdrawn by the publisher, also the meta data presented here may be out of date as it is no longer being maintained by the editorial teams at NBS.

The calculated capacity is based on the gutter being: The Amber document status indicator indicates that some caution is needed when using this document – it is either: Although the depth of the gutter has most effect on the catchment area, if the gutter size or shape varies significantly from that shown below then a separate calculation will be required.

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To use the tables: Return period of 1. Roof drainage, layout and calculation AMD The roof area shown in the tables is based on outlets with no gratings or guards.

bs en 12056-3

As an aid we have chosen a selection of towns throughout the UK, and determined the design rainfall intensity for each town as follows: Customers who bought this product also bought BS EN Compare the actual 120056-3 drained with the allowable area drained.

Find Similar Items This product falls into the following categories.

Roof Drainage Calculations – Notes

Search all products by. The gutter shapes and sizes shown below have been used in the preparation of the tables. The diagrams below shown the size and types of outlets shown in the tables, if other sizes or types are to be used then separate calculations will be required.

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BS EN 12056-3:2000

Flat Roofs The catchment area can be taken as the allowable area drained. For flat roofs the design head of water has been taken as 35mm. Again there may be more recent versions of the document.

Pitched roofs The catchment area has to be multiplied by the pitch factor to obtain the allowable area drained. If the allowable area is greater than the actual area then the gutter system is satisfactory. Document Status Indicators The Green document status indicator indicates that the document is: Click to learn more.

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Nominally Level Freely discharging maximum flow capacity. Where a wall or walls drain on to the roof, for example from a higher building, then more fn analysis of the catchment area is required.

bs en 12056-3

You may experience issues viewing this site in Internet Explorer 9, 10 or Dachentwaesserung, Planung und Bemessung. The catchment area given in the tables is based on the least of: Roof drainage, layout and calculation. 1256-3

bs en 12056-3

Water supply and waste systems buildingsWaste-water drainage, Drainage, Buildings, Rainwater control systems, Layout, Mathematical calculations, Gutters, Rainwater pipes, Hydraulic tests, Performance testing. Recommends design methods for roof and paved area drainage based on modern hydraulics and meteorological knowledge.

Determine the depth of gutter required, based on the distance between outlets Calculate the allowable area drained by multiplying the catchment area by the pitch factor.