Sector Specific Fire Rules

摘要

Single storey buildings do not normally require structural fire resistance (and therefore fire protection) as Section 7.4 of Approved Document B (England and Wales) considers them to be structures that only support a roof and excludes them. Exceptions occur where an element of the structure provides support or stability to elements such as: 1. A separating wall 2. A compartment wall or the enclosing structure of a protected zone 3. An external wall that must retain stability to prevent fire spread to adjacent buildings (i.e. a boundary condition). The wall must achieve not only the required fire resistance period but also the insulation and integrity requirements too 4. A support to a gallery or a roof which also forms the function of a floor (e.g. a car park or a means of escape).