Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p25
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 61008–63818

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).
Further information on temporary ties/bracing for roof truss erection is available in AS4440.

Figure 20 Temporary bracing/ties to bottom chord of trusses. Note: Bracing to top chord similar

Erection of gable roof assembly and verge truss assembly (diminishing truss, verge truss, verge trimmers, gable studs/droppers)
The erection must be carried out in accordance with a safe work method statement if it involves high-risk work (i.e. over 2 metres).
Where reasonably practicable, elements of the roof structure, such as a verge sprocket and outriggers, should be pre-assembled on the ground as a complete unit and lifted onto the supporting structure.

Erection of ancillary items
Items such as girder boots and hangers should be installed to the manufacturer's/supplier's specifications prior to working in the truss space.
The erection should be done using the appropriate safe work methods described in Section 8.8 of this Code.

Erecting trusses at greater than 600 mm centres
In certain situations, the spacing of the truss may exceed 600 mm centres, in which case other fall
protection must be provided when working at heights to fix and brace the trusses. Such fall protection may include:
    * mobile scaffolding system
    * mesh or netting installed to the manufacturer's specifications
    * fencing and handrails within adjacent trusses installed to the designer's or manufacturer's
      specifications
    * working platforms or elevating platforms, including motorised single person lift platforms
    * planks placed across internal and external top plates and across the bottom chords of the truss.

8.6 Constructing conventional or stick roof
Once the ceiling frame has been securely fixed, the ceiling frame may act as a base to install a platform. Planks or sheet flooring plywood can then be used as a platform to pitch the roof. Where additional height is required above the platform on the ceiling frame, an additional platform may be erected.
When constructing a conventional roof, ceiling joists and hanging beams can be passed up internally through a stair opening or externally through the upper level wall frame when it does not expose the receiver to further risk.
Where ceiling joists are erected prior to pitching the rafters, the placement of the ridge beam and the fixing of rafters to it may be done from planks or a working deck placed on the ceiling joists. Where ceiling joists are not erected, a work platform will need to be provided for framers to work from.
The practice of roof carpenters balancing on a ceiling hanger while nailing ceiling joists to the hanger