Withdrawn, Document not available for download
Building Supplement
Information Sheet
Covers rainfall intensity and the detailing factors to be considered before proceeding with gutter sizing, such as position, building life and use, catchment area and gutter and outlet/downpipe capacity.
Superseded by Guidance Document GD 03, December 2018. July 2012 edition. Replaces MGMA Information Data Leaflet No. 03 2003. Also known as Guidance Document 03 (GD03) Rainwater drainage design EN12056:3-2000.
Formed in 1994, the Metal Gutter Manufacturers Association represents UK manufacturers of metal gutters.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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