Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p26
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 63586–66324

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 is to be avoided where practicable.
Framers working at the external wall should work internally from either scaffolding or ladders or from an external perimeter scaffold. A person can work from an external top-plate if fall protection measures are in place. An external working platform will also provide a work platform for tasks such as trimming rafters and installing eaves.
Where a bracket scaffold system is used, the wall frames should be braced as necessary to ensure
adequate strength and to prevent excessive deflection. Scaffold planks may be used from waling plates or across bottom chords or top plates where necessary.
Where feasible, roofing members should be pre-cut at ground level.

8.7 Fixing roof battens to trusses
The process for installation of the roof battens will depend on the types of roofing material that is to be installed. Although there are similarities in the methods used to install metal and tile roofing, there are also differences. Guidelines for the installation of roof battens for each type of roofing material are outlined below. For all roof work, physical fall protection at the perimeter of the roof should be provided (see Section 4.1 of this Code).

Batten and truss spacing
In all cases, roof battens need to be capable of supporting the expected loadings from installers.
Note: For dot points 1 and 2 below, battens may be installed in a manner described in Section 8.8 of this Code.
In addition to the external fall prevention, batten and truss spacing should be reduced to minimise the risk of internal falls:
   1. Roof trusses should be installed and secured at spacings not exceeding 600 mm centres, with batten spacings not exceeding 900 mm centres.
   2. Where roof trusses are installed and secured at spacings greater than 600 mm but not exceeding 900 mm centres, batten spacing should not exceed 450 mm centres.
   3. Where roof truss spacing exceeds 900 mm centres (e.g. 1200 mm) and manufacturers'/suppliers' instructions permit, intermediate battens should not exceed 450 mm centres. They should also be installed sequentially and in a manner that controls the risk to installers (i.e. install the battens at the eaves first and then work up the roof plane to provide a barrier against falling between the truss rafters), otherwise other fall protection must be used.

8.8 Installation of battens

Marking/setting out for batten positioning
If the trusses are installed at 600 mm centres or less, a person may position the body so that the feet