Current
Building Supplement
Guidance Document
Information on the maintenance inspection programme and refurbishment methods that should be used on cast iron rainwater gutter systems.
December 2018 edition. First published October 2014.
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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