Relates to single-ply roof waterproofing using sintofoil membranes, manufactured from flexible polypropylene alloy (FPA), for use on limited access roofs and roof gardens. Key factors assessed were weathertightness, properties in relation to fire, resistance to wind uplift, foot traffic and penetration of roots, and durability.
Date of second issue: 11th January 2013. Originally certificated on 19th January 1998.
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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