Withdrawn, Document not available for download
Relates to guttering products for use as a seal at the junction of slated or tiled roofs on terraced, semi-detached or extended houses. Key factors assessed were weathertightness, properties in relation to fire, strength and durability.
Superseded by the fourth issue, dated 24th May 2019. Date of third issue: 7th September 2016 (amended 21st February 2017). Originally certificated on 2nd February 1989.
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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