For purlin spacing greater than 2200 mm fasteners to be fitted at maximum 600 mm centres and minimum double lap.
Roof safety mesh requirements.
9 2 position of roof safety mesh roof safety mesh shall be positioned in accordance with the following.
Safety mesh does not control the risk of falling from the perimeter or through penetration hazards.
Regarding safety net openings osha requires all openings to not exceed 36 square inches nor six inches on any side.
Appropriate lifting technique for long roof conforms to as nzs 4389 2015 roof safety mesh is installed by a competent person in a safe manner and in accordance with the manufacturer s instructions.
All mesh is to be lapped minimum of 150mm one square for purlins 2200 or greater to be lapped.
Each safety net must be equipped with a border rope for webbing that maintains a minimum breaking strength of 5 000 pounds.
Longitudinal wire must face down with the cross wires facing up all longitudinal wires need to be wrapped around or through drilled holes in the purlins and tied off with a minimum of.
Therefore safety mesh always needs to be used with appropriate edge protection guardrails or fall arrest systems and devices.
If safety mesh is used ensure it.
A position of mesh where roof safety mesh is required it shall be fitted under the roof sheeting so that it is supported by metal and or timber purlins rafters or roof members that are part of the roof structure.
Safety mesh does not prevent falls from the edge of a roof or through unmeshed holes in a roof so.
9 installation requirements 9 1 general the installation of roof safety mesh shall comply with the requirements of clauses 9 2 and 9 3.