Current
Core Supplement
Information Sheet
Describes a programme of long-term real time research looking at the performance of intumescent materials in an activated state which started in 1984. The test was carried out on door sealing strips. Relates the characteristics of the materials involved, the objectives of the programme, and the findings. Identifies materials not used in the ageing programme and draws conclusions.
First published 1997; updated 2009, 2012, 2014 and 2019.
The Intumescent Fire Seals Association publish technical advice and guidance for architects, services engineers, building control and fire officers, relating to: fire door seals, smoke seals, glazing seals and all penetration/gap sealing problems.
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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