Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p23
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 56311–58800

to a maximum of 1500 mm long, fixed at each end by a minimum of two 65 mm x 3.15 mm nails (see Figure 17).

Figure 17 Suggested method of fixing temporary waling plate

    * The web strut to support the waling plate should be a minimum 70 x 35 mm F5, or equivalent, fixed at each end by a minimum of two 65 mm x 3.15 mm nails.
    * Waling plates should be erected in pairs every fourth truss, or as required, to enable adequate access to fixing points for bracing (see Figure 18).

Figure 18 Showing the positions for pairs of waling plates

Erecting first and second trusses
Erect the first truss at the location specified by the roof manufacturer/supplier. This may be repeated a number of times for each common span series of trusses, depending on the roof layout design. Once the first and second trusses are fixed and temporarily braced in, the bottom chord may be used for the person erecting trusses to stand on or to support temporary working platforms.
If work platforms are used, they should be a minimum of 450 mm wide.
The person erecting trusses should erect, fix and brace the first and second truss in the following manner:
Method 1: Cranage is used to lift and position trusses
    * Set up an appropriate working platform with a platform height not greater than 2 metres from the 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.
    * Guide the first truss into position while supported by the crane.
    * Use a minimum of two people, one at each end, to fix the truss to top plates and to the temporary braces. At this point, the first truss should be in a stable condition.
    * Erect the second truss using the same procedure as above.
    * Temporarily brace the second truss to the first truss.

Method 2: Cranage is not used to lift and position trusses
    * Set up an appropriate working platform with a platform height not greater than 2 metres from the 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