Withdrawn, Document not available for download
Core Supplement
Certificate
Relates to polyurethane weathertight seals for use in structural and expansion joints and as perimeter seals for timber frame windows, tolerating high levels of vertical differential movement. Key factors assessed were weathertightness, thermal performance, risk of condensation and durability.
Superseded by the third issue, dated 26th May 2021, amended September 2021. Date of second issue: 23rd August 2019. Supersedes the first issue, dated 10th November 2014.
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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