Current
Core Supplement
Certificate
Relates to half round gutter systems used as eaves guttering for conveying rainwater from roofs. Key factors assessed were performance of joints, resistance to loading and durability.
Third issue, dated 28th September 2020. Supersedes the second issue: 20th December 2016. Originally certificated on 25th June 1986.
The British Board of Agrément have been providing authoritative and independent information on the performance of building products for over 40 years. The certificates they produce contain data on durability, installation and compliance with Building Regulations.
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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