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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

  1. Prepare for assembly
  2. Lay up truss
  3. Control pressing operations
  4. Prepare products for despatch and report

Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

lay up any of the following trusses in line with an individual work order and construction plan:

"A" type truss

truncated standard truss

girder truss

truncated girder

jack truss

rafter truss

gable truss

saddle truss

strap, pack and label completed products ready for transportation.


Knowledge Evidence

A person competent in this unit must be able to demonstrate knowledge of:

quality requirements, at a basic level of understanding, of national building codes and standards

environmental protection practices for assembling timber roof trusses:

reducing water and energy use

disposing of, recycling and reusing timber and other waste

typical timber defects and how these affect ability to produce a quality finished product:

warp

wane

cupping

shakes

insect defects

knots

resin pockets

typical flow of material supply in and out of the roof truss assembly area

typical assembly sequences and range of techniques used to assemble timber roof trusses

range of industry standard lengths, cross sections and tolerances and applicable terminology

typical assembly faults triggering correction to ensure product quality:

incorrectly positioned joints

timber splits from nailing

incorrectly positioned hardware

purpose, features and operation of equipment used to assemble timber roof trusses:

measuring equipment

assembly jigs

truss tables

circular saws

docking saws

drills

nail plate presses

staple guns

nail guns

compressor or compressed air supply

marking equipment

strapping equipment

purpose, features and use of assembly componentry

organisational procedures specific to assembling timber roof trusses:

workplace health and safety with particular emphasis on on equipment lock out and use of personal protective equipment

communication reporting lines

maintaining construction standards

recording and reporting production outcomes and equipment faults

labelling products for identification and transportation.