Document ID: chunk:federal_register_of_legislation:F2016L00411:front:0:p28
Version: federal_register_of_legislation:F2016L00411
Segment Type: other
Provision Reference: 
Character Range: 68490–71028

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
Safe access must be provided for workers carrying out work on the roof. Depending on the edge protection system being used, you should ensure that:
    * persons are able to access the roof through the roof edge protection without having to climb over the top rail or midrail
    * access ladders are secured against movement
    * where a platform is located more than 500 mm below the roof edge, then additional means of access to the roof is provided
    * where an elevator, hoist or similar is used it is installed so that materials can be received at the roof level.

9.3 Guardrail systems for roofing work
Guardrail systems should include top, mid and bottom rails or toeboards (see Figure 22). Where toeboards are used in place of bottom rails they must be able to withstand the likely impact loads.
Guardrail systems should include the following:
    * toeboards or mesh infill to prevent tools, materials or debris falling from the roof, unless a 2 metre 'no go' zone has been established to prevent persons entering the area below
    * a clear gap between rails not exceeding 450 mm. The clear distance between a mid-rail and a toeboard or bottom rail should not exceed 275 mm
    * no gap between the roof edge, including the gutter, and a guardrail located outside the roof line exceeding 100 mm
    * a clear distance between the roof cladding and the bottom rail of not less than 150 mm and not greater than 275 mm
    * an effective guardrail height above the roof surface of not less than 900 mm (for roofs with a pitch over 10 degrees the effective height must be measured from a point 300 mm inside the roof edge)
    * infill panels where the pitch of the roof exceeds 26 degrees.

Figure 22 Guardrail system for roofing work

9.4 Catch platforms
Catch platforms may be constructed from many types of scaffolding systems (see Figure 23). Catch platforms used to control the risk of a fall:
    * where the roof pitch is not greater than 26 degrees, should be positioned as close as feasible to the underside of the roof, and in no case greater than 1 metre below the roof edge
    * where the pitch of the roof is greater than 26 degrees, should be positioned as close as feasible to the underside of the roof and in no case more than 500 mm below the roof edge
    * should have