1.2 Strength of Supporting Structures
If it is unclear to the operator or competent person that the roof sheeting
or structure is adequate, the roof sheeting or structure shall be assessed
by an engineer. It is NOT SAFE to climb onto the roof on the same side
as you have attached the anchor or use it when connected to the same
side.
The supporting structure/ roof sheeting should be capable of sustaining
an ultimate load equal to 15kN for single point connection as per
AS/NZS1891.4.
1.3 Recommendations
Employers, Supervisors and Operators should ensure that:
• Locations of anchors comply with the requirements for safe use, safe
access, the pendulum effect, as stipulated in AS/NZS 1891.4 clause
3.2.
• Structural supports for anchors are assessed separately by a suitably
qualified engineer (as stipulated in AS/NZS 1891.4, clause 3.1.2.)
or by a competent person, as appropriate, and the assessment
documented.
• Anchors are inspected for compliance with the requirements in
AS/NZS 1891.4 clause 9.3.3 and the inspection documented. The
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Figure One