BS 8414 Fire performance of external cladding systems
The British Standards Institution (BSI) is the UK National Standards Body (NSB). It publishes standards and provides a range of books, self-assessment tools, conferences and training services. It also represents UK economic and social interests in European and international standards organisations.
British Standard (BS) publications are technical specifications or practices that can be used as guidance for the production of a product, carrying out a process or providing a service.
BS 8414 is a two-part standard:
- BS 8414-1:2015 Fire performance of external cladding systems. Test method for non-loadbearing external cladding systems applied to the masonry face of a building was published in 2015. It was then amended by BS 8414-1:2015+A1:2017 in June 2017. It can be used to test rainscreen cladding and external wall insulation systems.
- BS 8414-2:2015 Fire performance of external cladding systems. Test method for non-loadbearing external cladding systems fixed to and supported by a structural steel frame was published in 2015. It was then amended by BS 8414-2:2015+A1:2017 in June 2017.
The use of new and innovative products for cladding buildings has given rise to concerns about fire performance, as these systems are often less well understood than more traditional construction materials. A number of high profile fires have illustrated the importance of adequately testing external wall systems on a realistic scale.
First published as British Standards in 2002, the BS 8414 test methods were developed by the Building Research Establishment (BRE). They evaluate whether a cladding system subject to fire breaking out of an opening (such as a window) in an external wall, will result in excessive fire spread up the outside of the building and the potential for fire to re-enter at a higher level.
The tests are carried out in specialist laboratories, and are performed on full-scale systems (rather than small-scale samples) incorporating; joints and corner details, fixings, insulation, fire breaks, cavities and other elements of the system construction.
 Related articles on Designing Buildings Wiki
- Automatic fire detection and alarm systems, an introductory guide to components and systems BR 510.
- ACM cladding.
- BR135: Annex B. Performance criteria and classification method for BS 8414-2:2005.
- BS 5839-1.
- BS 9999: Code of practice for fire safety in the design, management and use of buildings.
- Building Research Establishment.
- Celotex RS5000 PIR insulation.
- Cladding for buildings.
- External fire spread, Supplementary guidance to BR 187 incorporating probabilistic and time-based approaches.
- Fire performance of external thermal insulation for walls of multistorey buildings, third edition (BR 135).
- Fire safety design.
- Grenfell Tower fire.
- The Regulatory Reform (Fire Safety) Order 2005.
- Understanding the factors affecting flashover of a fire in modern buildings.
Featured articles and news
PCSAs enable clients to employ contractors before the main contract commences. Read our introductory article.
ICE 200 brings together transformative projects from the past 200 years - and the engineers behind them.
Dame Judith Hackitt hosts an industry summit to kick start the second phase of the review.
This article explains the Buildings Regulations completion certificate, what it is, and when its needed.
Graphene has many potential applications, but when will it start being used in civil engineering?
Increasing productivity – now more than ever as we lead up to Brexit – should be the sector’s number one priority in 2018.
Carillion's collapse causes Construction Leadership Council to delay the construction sector deal report.
Urban Heritage, Development and Sustainability: international frameworks, national and local guidance.
What will the General Data Protection Regulations (GDPR) mean for you when they come into force in May?
Business Secretary chairs a new taskforce to monitor and advise on mitigating the impacts of Carillion’s liquidation.
Sir John Armitt is appointed the new chair of the National Infrastructure Commission.
High quality and high density homes - is it what we need or is it storing up trouble?