- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 06 Jan 2018
Assessing the fire performance of existing reinforced concrete flooring systems IP 9 12
Assessing the fire performance of existing reinforced concrete flooring systems (IP 9/12) was written by Tom Lennon and published by BRE on 27 March 2012.
During their lifetimes, buildings may be refurbished or renovated, often to provide functions not envisaged when they were originally designed. As a result, their structure may no longer achieve the required fire resistance, and defects or material degradation may mean it no longer achieves the performance assumed when it was built.
This 12-page information paper provides guidance on assessing the fire performance of reinforced concrete flooring systems, which were often used in large buildings built in the post-war period. It provides information about carrying out assessments using tabulated values from national standards and the Eurocode for the design of concrete structures, as well as experience and research by the Fire Research Station (now part of BRE Group).
The contents of the information paper are:
- Concrete in fire.
- Tabulated data for reinforced concrete floors.
- Alternative forms of construction.
- Methods to enhance the fire resistance of existing floor systems.
 Find out more.
 Related articles on Designing Buildings Wiki
- Approved document B.
- BRE articles on Designing Buildings Wiki.
- BRE Buzz articles on Designing Buildings Wiki.
- BRE Buzz.
- BS 9999.
- Building Research Establishment.
- Concrete and fire safety.
- Fire performance of external thermal insulation for walls of multistorey buildings, third edition (BR 135).
- Fire protection engineering.
- Managing fire risk in commercial buildings: A guide for facilities managers.
- Managing risks in existing buildings: An overview of UK risk-based legislation for commercial and industrial premises (FB 86).
- Reinforced concrete.
Featured articles and news
Non-material amendments can sometimes be necessary after planning permission has been granted. Find out more here.
Six things civil engineers could do to ensure the success of projects.
Dublin housing crisis restricts employers' ability to recruit, according to new U+I research.
Intricate inlays and beautiful patterns can be created with waterjet cutting.
Two historic quarries in environmentally sensitive areas were reopened to repair Exeter Cathedral.
The phrase ‘time at large’ describes the situation where there is no date for completion, or it has become invalid.
The Maldives is under threat from climate change. Read this report from BRE on their potential involvement in the region.
MHCLG update states there are still 124 private high-rise buildings with unsafe cladding and no remediation plan.
Starting a new built environment degree? We have a wide range of resources aimed at students.
Former railway chief James Blake says trust and control are key to successful infrastructure projects.