Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p24
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 58589–61231

floor level at each end where the truss is to be fixed to the top plate. Alternatively, use a ladder in accordance with Section 7.1 of this Code. If a perimeter scaffold system is installed this work can be done from the outside rather than using internal working platforms or ladders.
    * Fix temporary braces to solid fixing points ready for connection to the truss. The braces can be timber of adequate size and length fixed by nails.
    * Fix skid blocks to top plate at first truss position to prevent the truss from slipping during standing.
    * Use a minimum of two people, one at each end, to stand the first truss; a third person may be required at mid-span to assist in stabilising a long span truss with a 'v' end push stick (see Figure 19).

Figure 19 Recommended method of manually standing trusses with a high apex

    * After standing the first truss to the vertical position, secure it to temporary braces. At this point, the first truss should be in a stable condition.
    * Erect the second truss using procedure above.
    * Temporarily brace the second truss to the first truss.
For both method 1 and method 2, the person erecting trusses must inspect the temporary bracing material for obvious defects that may compromise the material's structural integrity (i.e. knots, splits, cracks and rotting timber).

Erecting subsequent roof trusses
Trusses should be taken from the stockpile and moved into position by crane or by the persons erecting them. Additional roof trusses are not to be erected unless the prescribed fixing, bracing and any additional support requirements have been undertaken for the first and second truss.
Each subsequent roof truss should be placed with each end of the truss controlled by a person on the working platform or ladder. A third person at the apex may be required to assist.
Each subsequent roof truss must be fixed and braced according to the manufacturer's/supplier's specifications using safe methods for working at heights.

Fixing of top and bottom chord temporary bracing
Temporary ties should be used on the top chords at spacings no greater than 3000 mm and at spacing no greater than 4000 mm on the bottom chord.
If the person erecting trusses is to be supported by the bottom cords of the roof trusses, the ties/bracing must be at spacings no greater than 3000 mm.
All bracing and fixing should take into consideration all imposed loads during the course of construction. As such, flat strapping or an equivalent, or trimmers nailed to the face of trusses where the nailing is from the outer face of the truss, must not be used (see Figure 20).
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