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.
Roof safety mesh requirements.
Safety mesh does not control the risk of falling from the perimeter or through penetration hazards.
Each safety net must be equipped with a border rope for webbing that maintains a minimum breaking strength of 5 000 pounds.
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.
For purlin spacing 1200 2200 mm fasteners to be fitted at maximum of 900 mm centres and minimum single lap.
Regarding safety net openings osha requires all openings to not exceed 36 square inches nor six inches on any side.
9 installation requirements 9 1 general the installation of roof safety mesh shall comply with the requirements of clauses 9 2 and 9 3.
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.
For purlin spacing greater than 2200 mm fasteners to be fitted at maximum 600 mm centres and minimum double lap.
Staging on the roof surface to spread the loads safety mesh secured under fragile roofing or skylights.
In order to better understand safety mesh please see the terms of roof safety mesh.
9 2 position of roof safety mesh roof safety mesh shall be positioned in accordance with the following.