2.1 This section is presented as follows:
Basic requirements for stability.
Sizes of certain timber members in floors and roofs for dwellings.
Areas at risk from house longhorn beetle.
Thickness of masonry walls in certain residential buildings of not more than three storeys, small single-storey non-residential buildings and annexes.
Proportions for masonry chimneys.
Foundations of plain concrete.
2.3The following meanings apply to terms throughout this section:
A wall designed and constructed to afford lateral support to another wall perpendicular to it, support being provided from the base to the top of the wall.
The horizontal distance between the two leaves of a cavity wall.
A wall constructed as a compartment wall to meet the requirements of regulation B3(2).
The load due to the weight of all walls, permanent partitions, floors, roofs and finishes including services, and all other permanent construction.
The load assumed to be produced by the intended occupancy or use, including the weight of movable partitions, distributed, concentrated, impact, inertia and snow loads, but excluding wind loads.
A member which forms an integral part of a wall, in the form of a thickened section at intervals along the wall, so as to afford lateral support to the wall to which it is bonded or securely tied.
A wall or part of a wall which is common to adjoining buildings, and constructed to meet the requirements of regulation B3(2).
The distance between the longitudinal centres of any two adjacent timber members of the same type, measured in the plane of floor, ceiling or roof structure.
The distance measured along the centre line of a member between the centres of any two adjacent bearings or supports.
A wall to which lateral support is afforded by a combination of buttressing walls, piers or chimneys acting in conjunction with floor(s) or roof.
The load due to the effect of wind pressure or suction.