BS 8490:2007
Current
The latest, up-to-date edition.
Guide to siphonic roof drainage systems
Hardcopy , PDF
English
30-03-2007
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 General
5 Performance
6 Design parameters
7 Components of siphonic systems
8 Hydraulic design
9 Validation of designs
10 Installation
11 Testing and commissioning
12 Maintenance, inspection and cleaning
13 Information to be provided
Annexes
Annex A (informative) Principles of operation
of siphonic systems
Annex B (normative) Testing of siphonic outlets
Annex C (informative) Simplified checking procedure
for siphonic systems
Bibliography
Specifies to roof drainage systems using circular-section pipes that operate under siphonic action.
| Committee |
B/505
|
| DevelopmentNote |
To be read in conjunction with BS EN 12056-3. Supersedes 06/30150944 DC. (03/2007) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard applies to roof drainage systems using circular-section pipes that operate under siphonic action. It does not apply to siphonic drainage systems using rectangular or trapezoidal section conduits for water conveyance.
It gives information and provides guidance on design parameters, installation, verification and maintenance needs of siphonic roof drainage systems conforming to the performance requirements specified in BSEN12056‑3:2003, 6.2. Guidance is also given on carrying out checks of designs, for the use of specifiers and regulatory authorities.
Particular issues for site drainage systems that receive flows from siphonic roof drainage systems are also covered.
| BS 5427(2016) : 2016 | CODE OF PRACTICE FOR THE USE OF PROFILED SHEET FOR ROOF AND WALL CLADDING ON BUILDINGS |
| 15/30095322 DC : 0 | BS 5427 - CODE OF PRACTICE FOR THE USE OF PROFILED SHEET FOR ROOF AND WALL CLADDING ON BUILDINGS |
| BS EN 752:2008 | Drain and sewer systems outside buildings |
| BS EN 12056-3:2000 | Gravity drainage systems inside buildings Roof drainage, layout and calculation |
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