BS EN 12056-3:2000
Current
The latest, up-to-date edition.
Gravity drainage systems inside buildings Roof drainage, layout and calculation
Hardcopy , PDF
English
30-03-2007
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Foreword
1 Scope
2 Normative references
3 Definitions and symbols
3.1 Definitions
3.2 Symbols
4 Runoff calculations
4.1 Quantity of rainwater runoff
4.2 Rainfall intensity, r
4.3 Effective roof area, A
5 Hydraulic design
5.1 Eaves gutters
5.2 Valley and parapet gutters
5.3 Gutter outlets
5.4 Flat roof outlets
6 Rainwater pipes
6.1 Part filled (non-siphonic systems)
6.2 Siphonic systems
6.3 Drains
6.4 Connection to sanitary pipework
7 Layout
7.1 General
7.2 Gutters
7.3 Outlets
7.4 Emergency outlets
7.5 Access
7.6 Pipework
7.7 Trace heating
7.8 Change of building use
ANNEX A (NORMATIVE) TESTING OF GUTTERS AND OUTLETS
A.1 Capacity of gutter and outlet in combination
A.2 Capacity of gutter
A.3 Capacity of gutter outlet
ANNEX B (INFORMATIVE) NATIONAL AND LOCAL REGULATIONS AND
PRACTICE
ANNEX C (INFORMATIVE) CAPACITY OF DRAINS
ANNEX D (INFORMATIVE) LOGIC DIAGRAMS
NATIONAL ANNEX NA (INFORMATIVE) MATERIALS AND COMPONENTS FOR
RAINWATER GOODS
NATIONAL ANNEX NB (INFORMATIVE) METEOROLOGICAL ASPECTS
NATIONAL ANNEX NC (INFORMATIVE) EFFECTIVE CATCHMENT AREA
NATIONAL ANNEX ND (INFORMATIVE) HYDRAULIC DESIGN
NATIONAL ANNEX NE (INFORMATIVE) LAYOUT, INSTALLATION,
INSPECTION, TESTING AND MAINTENANCE
Recommends design methods for roof and paved area drainage based on modern hydraulics and meteorological knowledge. Also deals with the choice of materials and with site-work, including inspection, testing and maintenance.
| Committee |
B/505/21
|
| DevelopmentNote |
Supersedes BS 6367(1983). (08/2000) Supersedes 95/106292 DC. (08/2004)
|
| DocumentType |
Standard
|
| Pages |
84
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This European Standard applies to wastewater drainage systems, which operate under gravity. It is applicable for drainage systems inside dwellings and commercial, institutional and industrial buildings.
This third part of this European Standard describes a method of calculating the hydraulic adequacy of non-siphonic roof drainage systems and gives performance requirements for siphonic roof drainage systems. It also sets standards for the layout and installation of roof drainage insofar as they affect flow capacity.
This part of this European Standard applies to all roof drainage systems where the outlets are large enough not to limit the flow capacity of the gutter (i.e. free discharge conditions). It applies to all materials used for roof drainage systems.
Detailed information additional to that contained in this Standard may be obtained by referring to the technical documents listed in Annex B.
| Standards | Relationship |
| DIN EN 12056-3:2001-01 | Identical |
| SN EN 12056-3 : 2001 | Identical |
| I.S. EN 12056-3:2000 | Identical |
| NF EN 12056-3 : 2000 | Identical |
| NBN EN 12056-3 : 2000 | Identical |
| UNI EN 12056-3 : 2001 | Identical |
| NS EN 12056-3 : 1ED 2000 | Identical |
| EN 12056-3:2000 | Identical |
| UNE-EN 12056-3:2001 | Identical |
| 15/30095322 DC : 0 | BS 5427 - CODE OF PRACTICE FOR THE USE OF PROFILED SHEET FOR ROOF AND WALL CLADDING ON BUILDINGS |
| 13/30271503 DC : 0 | BS 5534 - SLATING AND TILING FOR PITCHED ROOFS AND VERTICAL CLADDING - CODE OF PRACTICE |
| BS 5516-1:2004 | Patent glazing and sloping glazing for buildings Code of practice for design and installation of sloping and vertical patent glazing |
| BS 6229:2003 | Flat roofs with continuously supported coverings. Code of practice |
| BS 5534(2014) : 2014 | SLATING AND TILING FOR PITCHED ROOFS AND VERTICAL CLADDING - CODE OF PRACTICE |
| BS 6465-3:2006 | Sanitary installations Code of practice for the selection, installation and maintenance of sanitary and associated appliances |
| BS 8515(2009) : 2009 | RAINWATER HARVESTING SYSTEMS - CODE OF PRACTICE |
| BS 5427(2016) : 2016 | CODE OF PRACTICE FOR THE USE OF PROFILED SHEET FOR ROOF AND WALL CLADDING ON BUILDINGS |
| BS 8217:2005 | Reinforced bitumen membranes for roofing. Code of practice |
| 06/30150944 DC : DRAFT JUN 2006 | BS 8490 - GUIDE TO SIPHONIC ROOF DRAINAGE SYSTEMS |
| PD 5454:2012 | Guide for the storage and exhibition of archival materials |
| BS 5534(2003) : 2003 | CODE OF PRACTICE FOR SLATING AND TILING (INCLUDING SHINGLES) |
| BS 5502-25:1991 | Buildings and structures for agriculture Code of practice for design and installation of services and facilities |
| BS 8490:2007 | Guide to siphonic roof drainage systems |
| BS EN 12056-2:2000 | Gravity drainage systems inside buildings Sanitary pipework, layout and calculation |
| BS EN 12056-5:2000 | Gravity drainage systems inside buildings Installation and testing, instructions for operation, maintenance and use |
| BS EN 12056-1:2000 | Gravity drainage systems inside buildings General and performance requirements |
| BS 9101:2017 | Steel and aluminium rainwater systems. Specification |
| 02/105033 DC : DRAFT AUG 2002 | BS 5534 - CODE OF PRACTICE FOR SLATING AND TILING (INCLUDING SHINGLES) |
| BS EN 12056-2:2000 | Gravity drainage systems inside buildings Sanitary pipework, layout and calculation |
| EN 12056-2:2000 | Gravity drainage systems inside buildings - Part 2: Sanitary pipework, layout and calculation |
| EN 12056-1:2000 | Gravity drainage systems inside buildings - Part 1: General and performance requirements |
| BS EN 12056-1:2000 | Gravity drainage systems inside buildings General and performance requirements |
| EN 12056-5:2000 | Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and use |
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