Current
Core Supplement
Certificate
Relates to interlocking, prefabricated preservative-treated radiata pine timber headers, stretchers and header support blocks, used to form an earth-retaining wall. Key factors assessed were structural performance and durability.
Date of third issue: 3rd March 2016, amended on 7th August 2017. Originally certificated on 28th March 1995.
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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