Relates to a self-adhesive, vapour permeable, airtight membrane, for use in walls with a cavity and a masonry outer leaf, weatherboarding, tile/slate cladding or closed rain-screen cladding systems and in modular floor cassette constructions Key factors assessed are risk of condensation, weathertightness, strength and durability.
Date of second issue: 23rd April 2018. Originally certificated on 16th November 2015.
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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