Timber Fixing

When attached to timber purlins, the longitudinal wires of the safety mesh must be either bent down and fixed to the sides of the purlins or fixed to the tops of the rafters by 40 mm galvanised steel staples with a 3.15 mm diameter and spaced at 150 mm.

Staples must be driven so that a cross-wire is between the end of the wire and the staple, or the end of the wire is bent back and twisted four times around the same wire so that individual wires cannot be drawn from a staple.

Longitudinal Wires Passed Through Staples

Longitudinal Wires Passed Through Staples

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The longitudinal wires must be fixed to the purlins or rafters by galvanized steel wire loops of not less than 3.15 mm diameter. Place the centre of the tying wire around the longitudinal wire at an intersection, so that a transverse wire is between that point and the end of the longitudinal wire.

The tying wire must be passed once completely around the rafter, and then drawing the two tails of the tying wire in opposite directions over the two strands of the tying wire and twisting together with at least three complete turns.

Longitudinal Wires Wrapped Around Purlins

Longitudinal Wires Wrapped Around Timber

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When joining rolls or sections, the two transverse wires must be placed together and the longitudinal tail wires must be twisted around each other. One longitudinal tail wire must be twisted four times around the main portion of the same wire. The other longitudinal tail wire must be twisted once around the main portion of the same wire and then four times around the two transverse wires