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.

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. Where the roof was tiled battens were installed to support and secure the tiles. Hip end trusses that are supported by hip truss and creates hip plane. Use this for gable roofs hip roofs and combinations of these.

Hold these restraints in place with two nails each. 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. For a light roof. A steelbrace is made from metal strapping and has a slight bend along the centre line.

Diagonal bracing is required to address top chord distortion. Method 2 prop to ground. Roof area is the actual plan area of the roof and includes overhangs. 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.

Please try again later. 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. Table 10 16 sets out the minimum roof bracing requirements for roof plan areas including the overhangs. Method 1 post wall frame.

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. Truss that supports creeper trusses and creates hip roof plane. It is used in other parts of the roof as well for example the bottom chords and webs.

When laid diagonally sarking also provided roof plane bracing. Sarking consisted of 1 25 mm wide close butted boards that were laid either perpendicular to the rafters or on the diagonal. Install the bottom chord lateral restraints and diagonal bracing. Diagonal bracing to stabilise roof planes.

The roof is a light roof. Bracing is often provided by a steelbrace. Step 5 connect trusses permanently. Install top chord diagonal bracing and web member diagonal bracing to form triangles perpendicular to the plane of the truss.

For a heavy roof.