Lateral Restraint Straps To Roof

Lateral restraint straps are required at floor and rafter or flat roof member levels.

Lateral restraint straps to roof. The masonry walls would also benefit from the lateral restraint by restricting movement of the separating walls and gable walls. Lateral restraint straps should be fixed to the roof structure by either. Lateral restraint is provided by more than dedicated straps and ties. Vertical loads down through the wall imposed by the roof and internal floors plays a positive role.

Provision is necessary should the height of the wall exceed recommended values found in bs en 1995 1 1 2004 and current building regulations. Lateral restraint straps are required at floor rafter or flat roof member levels and in pitched roofs at ceiling joist levels. Fixing to solid noggings using a minimum of four 50mm x 4mm steel screws or four 75mm x 4mm 8swg round nails with one fixing in the third rafter figure 1 or. For homes four storeys or over fixed at a maximum spacing of 1 25m.

Even if you are using pre fabricated roof trusses part a of the building regulations and bs8103 remain clear that tensions straps should be no more than 2m apart. If you are building a pitched roof you will also need to use straps at ceiling joist levels. Lateral restraint straps should be fixed to the roof structure by either. Lateral restraint straps should be located.