Structure: Approved Document A

O N L I N E V E R S I O N A1/2 THICKNESS OF WALLS IN CERTAIN SMALL BUILDINGS Diagram 15 Lateral support by floors See para 2C35 e. Restraint of internal walls specifications including material references 1 or d. where floors are at or about the same level 3 (austenitic stainless steel). The declared tensile on each side of a supported wall, and strength of tension straps should not be less contact between the floors and wall is either than 8kN. continuous or at intervals not exceeding 2m. Where contact is intermittent, the points of Tension straps need not be provided: contact should be in line or nearly in line on a. in the longitudinal direction of joists in houses plan (see Diagram 15(e)). of not more than 2 storeys, if the joists are 2C36 Gable walls should be strapped to roofs as at not more than 1.2m centres and have at shown in Diagram 16(a) and (b) by tension straps least 90mm bearing on the supported walls as described in 2C35. or 75mm bearing on a timber wall-plate at each end, and Vertical strapping at least 1m in length should be provided at eaves level at intervals not exceeding b. in the longitudinal direction of joists in houses 2m as shown in Diagram 16(c) and (d). Vertical of not more than 2 storeys, if the joists strapping may be omitted if the roof: are carried on the supported wall by joist hangers in accordance with BS EN 845-1 a. has a pitch of 15° or more, and of the restraint type described by additional b. is tiled or slated, and guidance given in BSI Published Document PD 6697:2010 and shown in Diagram 15(c), c. is of a type known by local experience to be and are incorporated at not more than 2m resistant to wind gusts, and centres, and d. has main timber members spanning onto the c. when a concrete floor has at least 90mm supported wall at not more than 1.2m centres. bearing on the supported wall (see Diagram 15(d)), and Structure Approved Document A 30 O N L I N E V E R S I O N