Welded roof safety mesh Features
The wires are clean, smooth and free from defects detrimental to its subsequent processing and end use.
Wire with zinc coating and UV stabilized.
Mesh construction shall be formed by welding of wires using electric resistance techniques under pressure.
Apart from the cut ends, roof safety mesh is clean and free of defects, sharp edges, burrs and similar imperfections that may cause injury to the handler or installer.

                                                                       Table 2 Roll of roof safety mesh

                                                            Table 3 requirements for roof safety mesh staples

                                                            Table 4 requirements for roof safety mesh fasteners

                                                                             Roof safety mesh longitudinal wire joining.

Side lapping of roofing safety mesh. For purlin spacing 1200-2200 mm, fasteners to be fitted at maximum of 900 mm centres and minimum single lap. For purlin spacing greater than 2200 mm, fasteners to be fitted at maximum 600 mm centres and minimum double lap.

In order to better understand safety mesh, please see the terms of roof safety mesh.

Fastener
A ring fastener (or 'hog ring') used for joining side laps of roof safety mesh.
Fixing
Connections between the roof safety mesh and the roof member.
Joints
Connections between rolls or sections of roof safety mesh.
Lapping
Where the sides of roof safety mesh are overlayed to prevent a gap forming between the two.
Longitudinal wires
Wires of roof safety mesh that span between purlins and are welded to transverse wires; also known as line wires.
Mesh sag
A measurement of downward deflection of roof safety mesh between two roof members.
Purlin
Beam, parallel to the eaves, that is supported by rafters and gives support to roof cladding.
Roof member
A supporting member to which the roof safety mesh is attached, and which has the structural capacity to ensure the performance requirements. Typically purlins or rafters, but may include bridge bars or other members.
Roof safety mesh
Steel wire mesh, comprising longitudinal and transverse wires, fixed to an appropriate roof member to prevent persons from falling during installation of roofing materials and support insulation materials. Roof safety mesh is intended to control the risk of fall hazards over the entire roof area, including penetrations, both during construction and after the building enters service.
Staples
Component used for fixing the ends of longitudinal wires to appropriate timber roof members.
Transverse wires
Wires of roof safety mesh that are parallel to the purlins and are welded to the longitudinal wires; also known as cross-wires.
Ultraviolet (UV) protection
The stabilization process applied to materials susceptible to deterioration from UV radiation.