Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p27
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 66082–68724

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 are on adjacent trusses at all times and walk to the apex of the roof in order to mark out measurements.
If trusses are at greater than 600 mm centres, a person should not walk on the top chord of unbattened trusses unless internal fall protection is in place. Marking/setting out should be done sequentially throughout the batten installation process, or by working from a ladder or work platform. If this is not a viable solution, internal fall prevention options such as internal catch platforms, or the use of planks across waling plates, internal top plates and bottom chords should be used.

Installation of battens
Working off a ladder or a working platform, place the battens to be used on top of the trusses or pass/pull them up from the ground. Then secure the lower battens working from a ladder or internal or external work platform prior to roof access being required.
Secure remaining battens sequentially up to the apex of the roof by positioning the body over the truss (see Figure 21), making sure that there is at least one secured batten at waist level or above to minimise the risk of a fall.

Figure 21 Fixing roof battens to trusses

9.             ROOFING TASKS

Roofing work involves several tasks that potentially expose persons to the risk of falls both through and from the edge of the roof structure. Physical edge protection must be provided for all roofing works, so far as is reasonably practicable.
This section gives basic advice on the provision of fall protection for roofing construction work. This Code is not intended as complete guidance where the roofing work involves dismantling or demolition work.

9.1 Critical angle
The pitch of the roof is one of the key risk factors to be considered when determining the type of risk control measures to be put in place for roofing work. The critical angle is the roof pitch below which it is considered roof workers may reasonably be able to work and walk across the roof.
Builders and subcontractors should determine the critical angle as part of their risk assessment. In no case should the critical angle be taken as greater than 26 degrees or 10 degrees where the presence or likelihood of surface moisture, oil or other conditions makes the roof slippery. Consideration should be given to the fact that the critical angle may be reduced in the presence of fully glazed and wet tiles.

9.2 Access and egress