The Building Regulations, Part B – SI 115 (2006)
B1 Means of escape in case of fire.
A building shall be designed and constructed so that there are adequate means of escape in case of fire from the building to a place of safety outside the building that is capable of providing safe, effective use.
B2 Internal Fire Spread (linings)
For the purpose of inhibiting the spread of fire within a building, internal linings –
shall have either a rate of heat release or fire growth and a resistance to ignition reasonable in the circumstances and
shall offer adequate resistance to the spread of flame over their surfaces.
B3 Internal Fire Spread (structure)
1. A building shall be designed and constructed so that in the event of fire, its stability will be maintained for a reasonable period.
2. A wall common to two or more buildings shall be designed and constructed so that if offers adequate resistance to fire spread between those buildings.
3. A building shall be sub-divided with fire-resisting construction where necessary to inhibit fire spread within the building.
4. For the purposes of 2, terraced and semi-detached houses are to be treated as separate buildings.
B4 External Fire Spread
The external walls and building roof shall be designed and constructed so that they afford adequate resistance to fire spread to and from neighbouring buildings.
B5 Access and Facilities for the Fire Service
A building shall be designed and constructed so that there is adequate provision for access to fire appliances and other such facilities as may be reasonably required to assist the fire service in their protection of life and property.
