Main Changes Volume 2
Main changes made by the 2010 amendments.
The amendment in March 2010 updated a number of references to European Standards. In particular, the guidance in Appendix B (Fire doors) was updated to take account of BS EN 81-58:2003 Safety rules for the construction and installation of lifts – Examination and tests. Landing doors fire resistance test. The amendment in October 2010 reflected the changes made as a result of the Building Regulations 2010, Building Approved Inspector etc. Regulations 2010. The changes mainly reflected regulation number changes as a result of re-ordering.
Main changes in the 2006 edition
This is the second impression of the 2006 Edition of Approved Document B which incorporates the typographical and proofing corrections issued in April 2007.
This edition of Approved Document B, Fire safety, replaces the 2000 edition.
The main changes are:
- Approved Document B: The Approved Document has been split into two volumes. Volume 1 deals with dwellinghouses, Volume 2 deals with buildings other than
- Fire safety information: A new Regulation 38 has been introduced to ensure that sufficient information is recorded to assist the eventual owner/occupier/ employer to meet their statutory duties under the Regulatory Reform (Fire Safety) Order
- Management of Premises: New guidance is given on the need to ensure that management regimes are
- Certification schemes: Suitable schemes may be accepted by Building Control Bodies as evidence of
- Residential sprinklers: The use of sprinkler systems in accordance with BS 9251:2005 is recognised.
- Alternative Approaches
- HTM 05 “Firecode” should be used for used for the design of hospitals and similar health care
- BB100 should be used for the design of schools.
Fire Alarms in Flats: The guidance on smoke alarms in flats has been amended such that alarms should be installed in accordance with BS 5839-6:2004.
Simple guidance has been retained, in the form of a commentary on this standard, so that most users of the Approved Document will necessarily not need to obtain a copy of the standard.
- All smoke alarms should have a standby power
Fire Alarms: The guidance for buildings other than dwellings has been updated to take account of the 2002 edition of BS 5839-1.
Means of Escape:
- Locks and child resistant safety stays may be provided on escape
- New guidance has been provided on the provision of galleries and inner inner
Additional options of providing sprinkler protection and/or a protected stairway instead of alternative escape routes has been included for flats with more than one
- Guidance on the use of air circulation systems in flats with protected entrance halls or stairways is
- The provisions for smoke control in the common areas of flats have been
- Guidance on means of escape in buildings with open spatial planning has been
- A method has been provided for calculating acceptable final exit widths for merging escape routes at ground floor
- Guidance on the provision of cavity barriers associated with subdivided corridors has been moved to Section 3 and
- Guidance applicable to small premises, previously in BS 5588-11, has been incorporated into the
- New guidance on the design of residential care homes has been given including the use of sprinklers and/or free swing door closing Greater flexibility is also given where sprinkler systems are provided.
- Guidance on means of escape for disabled people has been incorporated in the general guidance on means of
- In tall building with phased evacuation consideration needs to be given to the interaction of firefighters with people attempting to evacuate the
- More detailed guidance has been provided on the protection of ventilation
- Compartment Walls: The predicted deflection of a floor, in the event of a fire, should be accommodated in the design of compartment
- sprinkler Protection in Flats: Sprinkler systems should be provided in blocks of flats exceeding 30m in
- Warehouses: A maximum compartment size has been introduced for unsprinklered singlestorey warehouse
- Concealed spaces: This section has been completely restructured. Table 13 (AD B 2000) has now been incorporated into the text to reduce
Main changes are continued on the inside back cover