Means of warning and escape   B1   The building shall be designed and constructed so that there are appropriate provisions for the early warning of fire, and appropriate means of escape in case of fire from the building to a place of safety outside the building capable of being safely and effectively used at all material times.    ,Requirement B1 does not apply to any prison provided under section 33 of the Prison Act 1952 (power to provide prisons etc. ).,
 Internal fire spread (linings)   B2   —   1   To inhibit the spread of fire within the building, the internal linings shall—   a   adequately resist the spread of flame over their surfaces; and     b   have, if ignited, either a rate of heat release or a rate of fire growth, which is reasonable in the circumstances.       2   In this paragraph “internal linings” means the materials or products used in lining any partition, wall, ceiling or other internal structure.      ,,
 Internal fire spread (structure)   B3   —   1   The 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 it adequately resists the spread of fire between those buildings. For the purposes of this sub-paragraph a house in a terrace and a semi-detached house are each to be treated as a separate building.     3   To inhibit the spread of fire within the building, it shall be sub-divided with fire-resisting construction to an extent appropriate to the size and intended use of the building.     4   The building shall be designed and constructed so that the unseen spread of fire and smoke within concealed spaces in its structure and fabric is inhibited.      ,Requirement B3(3) does not apply to material alterations to any prison provided under section 33 of the Prison Act 1952.,
 External Fire Spread   B4   —   1   The external walls of the building shall adequately resist the spread of fire over the walls and from one building to another, having regard to the height, use and position of the building.     2   The roof of the building shall adequately resist the spread of fire over the roof and from one building to another, having regard to the use and position of the building.        Access and facilities for the fire service   B5   —   1   The building shall be designed and constructed so as to provide reasonable facilities to assist fire fighters in the protection of life.     2   Reasonable provision shall be made within the site of the building to enable fire appliances to gain access to the building.      ,,


 Protection against sound from other parts of the building and adjoining buildings   E1   Dwelling-houses, flats and rooms for residential purposes shall be designed and constructed in such a way that they provide reasonable resistance to sound from other parts of the same building and from adjoining buildings.    ,,
 Protection against sound within a dwelling-house etc.   E2   Dwelling-houses, flats and rooms for residential purposes shall be designed and constructed in such a way that—   a   internal walls between a bedroom or a room containing a water closet, and other rooms; and     b   internal floors,    provide reasonable resistance to sound.    , Requirement E2 does not apply to—     an internal wall which contains a door;      an internal wall which separates an en suite toilet from the associated bedroom;      existing walls and floors in a building which is subject to a material change of use.    ,
 Reverberation in common internal parts of buildings containing flats or rooms for residential purposes   E3   The common internal parts of buildings which contain flats or rooms for residential purposes shall be designed and constructed in such a way as to prevent more reverberation around the common parts than is reasonable.    ,Requirement E3 only applies to corridors, stairwells, hallways and entrance halls which give access to the flat or room for residential purposes.,
 Acoustic conditions in schools   E4   —   1   Each room or other space in a school building shall be designed and constructed in such a way that it has the acoustic conditions and the insulation against disturbance by noise appropriate to its intended use.     2   For the purposes of this Part—     “school” has the same meaning as in section 4 of the Education Act 1996 ; and      “school building” means any building forming a school or part of a school.         ,,