Roof Plane Bracing

The roof the house has a gable roof with 300 mm overhangs at the soffit and verge on the 2 storey section and a hip roof on the single storey section see figure 1.

Roof plane bracing. The roof is a light roof. Sarking consisted of 1 25 mm wide close butted boards that were laid either perpendicular to the rafters or on the diagonal. Because this sheathing material does not provide a diaphragm at the plane of the roof other means of bracing the roof against horizontal loads must usually be employed. Diagonal bracing to stabilise roof planes.

Hold these restraints in place with two nails each. A steelbrace is made from metal strapping and has a slight bend along the centre line. Where the roof was tiled battens were installed to support and secure the tiles. Please try again later.

Install top chord diagonal bracing and web member diagonal bracing to form triangles perpendicular to the plane of the truss. Install the bottom chord lateral restraints and diagonal bracing. Bracing is often provided by a steelbrace. When laid diagonally sarking also provided roof plane bracing.

Method 2 prop to ground. Temporary bracing for gable end roof. Roof area is the actual plan area of the roof and includes overhangs. Table 10 16 sets out the minimum roof bracing requirements for roof plan areas including the overhangs.

Hip end trusses that are supported by hip truss and creates hip plane. For example the roof may be braced with diagonal metal straps applied to the top of the sheathing or with a layer of plywood or osb over the decking. Diagonal bracing is required to address top chord distortion. Method 1 post wall frame.

Truss that supports creeper trusses and creates hip roof plane. Use this for gable roofs hip roofs and combinations of these. Bracing sometimes not required for truss and framed roofs roof space bracing and roof plane bracing are not required where. For each 25 m of roof plan area or part thereof one roof plane diagonal brace or one roof space diagonal brace is required.

This feature is not available right now. It is used in other parts of the roof as well for example the bottom chords and webs. Bracing not shown for clarity truss that creates roof planes and does not support other trusses truss that creates hip plane by truncating and allowing hip jacks truss top chords to fly over. A pair of crossed lumberlok strip brace preferred for ease of installation can be classed as one roof plane brace and shall be installed as detailed in this.

A hip or valley rafter running continuously from ridge to top plate can be classed as one roof plane brace.