Current
Building Supplement
Guidance Document
Information on types of large gutters, their applications and performance, requirements for membrane welding, design requirements and guarantees.
March 2019 edition. Supersedes the September 2016 amendment of the April 2016 edition. First published as Information Sheet 7 - Guidance on membrane gutter thickness (MGMA, 2011).
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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