Limited combustibility
In England, the building regulations establish requirements for specific aspects of building design and construction. Approved documents then provide guidance for satisfying those requirements in common building situations.
Approved document B of the building regulations 'Fire Safety', defines limited combustibility as: 'A material performance specification that includes non-combustible materials, and for which the relevant test criteria are set out in Appendix A, paragraph 9.'
Requirements for materials of limited combustibility are defined in table A7 of Approved Document B.
Following the Grenfell Tower Fire, a decision was taken to ban combustible materials in the cladding for buildings over 18m in height. The following change to approved document 7 came into force on 21 December 2018.
| The Building Regulations restrict the use of combustible materials in the external walls of certain buildings over 18m in height. Refer to regulation 7(2) of the Building Regulations and to Approved Document B: volume 2, part B4 for details. |
[edit] Related articles on Designing Buildings Wiki
- ACM cladding.
- Approved document B.
- Approved inspector.
- BR 135 Fire Performance of external thermal insulation for walls of multi-storey buildings
- BS 8414 Fire performance of external cladding systems
- BS 9999.
- Building regulations.
- Combustibility.
- Fire and rescue service.
- Fire inspector.
- Fire safety design.
- Fire.
Featured articles and news
Designing for neurodiversity: driving change for the better
Accessible inclusive design translated into reality.
RIBA detailed response to Grenfell Inquiry Phase 2 report
Briefing notes following its initial 4 September response.
Approved Document B: Fire Safety from March
Current and future changes with historical documentation.
A New Year, a new look for BSRIA
As phase 1 of the BSRIA Living Laboratory is completed.
A must-attend event for the architecture industry.
Caroline Gumble to step down as CIOB CEO in 2025
After transformative tenure take on a leadership role within the engineering sector.
RIDDOR and the provisional statistics for 2023 / 2024
Work related deaths; over 50 percent from constructuon and 50 percent recorded as fall from height.
Solar PV company fined for health and safety failure
Work at height not properly planned and failure to take suitable steps to prevent a fall.
The term value when assessing the viability of developments
Consultation on the compulsory purchase process, compensation reforms and potential removal of hope value.
Trees are part of the history of how places have developed.
The increasing costs of repair and remediation
Highlighted by regulator of social housing, as acceleration plan continues.
Free topic guide on mould in buildings
The new TG 26/2024 published by BSRIA.
Greater control for LAs over private rental selective licensing
A brief explanation of changes with the NRLA response.
Practice costs for architectural technologists
Salary standards and working out what you’re worth.
The Health and Safety Executive at 50
And over 200 years of Operational Safety and Health.
Thermal imaging surveys a brief intro
Thermal Imaging of Buildings; a pocket guide BG 72/2017.