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B4 - External Fire Spread

The latest decision letters relating to Determinations specific to this technical part have been published on the Communities and Local Government website.

Below are links to earlier appeals:

  • Requirement B4
    • Determination of compliance with Requirement B4 ("Fire Safety - External Fire Spread") of the Building Regulations 1991 (as amended) in respect of a thatch roof reinstatement. 11 Jun 1999 (Ref: 45/1/163).
  • Requirement B4(2)
    • Determination of compliance with Requirement B4(2) (External Fire Spread) of the Building Regulations 1991 (as amended) in respect of a two storey side extension. 7 Aug 1998 (Ref: 45/1/167).
  • Requirement B4(2)
    • Determination of compliance with Requirement B4(2) (External Fire Spread) of the Building Regulations 1991 (as amended) in respect of the acceptability of the construction of a roof on an entrance building to a Zoo. 28 Jul 1998 (Ref: 45/1/146).