Withdrawn, Document not available for download
Core Supplement
Certificate
Relates to bentonite and polyethylene waterproofing membranes for protecting below-ground structures against water penetration from the ground. Key factors assessed were resistance to water, water vapour, puncture and substrate movement; chemical resistance and durability.
Certificate withdrawn Januarary 2024. Third issue, dated 14th March 2019. Supersedes the second issue, dated 10th November 2014. Originally certificated on 10th March 1997.
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.
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