BS EN 12056-3 PDF

Part 3 of BS EN By Brian Whorlow BA Hons, IEng, FCIPHE. Consultant, training course presenter and technical author. Canterbury, UK. Roof Drainage Calculations to BS EN Gravity drainage systems inside buildings – Part 3: Roof drainage layout and calculation. Rainfall Intensity. BS EN Gravity Drainage Systems Inside Buildings – Part 3: Roof Drainage, Layout and Calculation.

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Systeme d’evacuation des eaux pluviales, conception et calculs. Water supply and waste systems buildingsWaste-water drainage, Drainage, Buildings, Rainwater control systems, Layout, 12056–3 calculations, Gutters, Rainwater pipes, Hydraulic tests, Performance testing. Roof drainage layout and calculation. Reseaux d’evacuation gravitaire a l’interieur des batiments.

The catchment area given in the tables is based on the least of: Return period of 1. For eaves gutters only the results for straight outlets are shown.

The catchment area is given for outlets with and without gravel guards. You may experience issues viewing this site in Internet Explorer 9, 10 or If there is a town or towns that you would like 10256-3 be included please let us know. You may find similar items within these categories by selecting from the choices below:.

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Roof Drainage Calculations – Notes

The calculated capacity is based on the gutter being: This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. The roof area shown in the tables is based on outlets with no gratings ba guards. Flat Roofs For flat roofs the design head of water has been taken as 35mm The catchment area is given for outlets with and without gravel guards.

Sign up for our monthly news letter. We use cookies to make our website easier to use and to better understand your needs. Catchment Area The catchment area given in the tables is based on the least of: Customers who bought this product also bought BS EN As an aid we have chosen a selection of towns throughout the UK, and determined bbs design rainfall intensity for each town as follows: To use the tables: Compare the actual area drained with the allowable area drained.

Note the previous standard gave rainfall intensity figures in mm per hour per square meter for 2 minute storm event.

If there is a town or towns that you would like to be included please let us know Gutter Types The gutter shapes and sizes shown below have been used in the preparation of the tables. For flat roofs the design head of water has been taken as 35mm. Where your project is not near one on the towns chosen, then separate calculation will again be required.

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Parapet or Eaves Gutter Pitch. Search all products by.

The 12506-3 of introducing gratings or guards is to reduce the catchment area by up to half. Your basket is empty. For square outlets separate calculations will be required.

For the UK, the maps in the standard show the intensity for various return periods from 1 year to years. Return period of 4.

BS EN 12056-3:2000

The faster, easier way to work with standards. Worldwide Standards We can source any standard from anywhere in the world. 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. Click to learn more.