Elements and Performance Criteria
- Plan and prepare.
- Work instructions, including plans, specifications, quality requirements and operational details, are obtained, confirmed and applied from relevant information for planning and preparation purposes.
- Safety (OHS) requirements are followed in accordance with safety plans and policies.
- Signage and barricade requirements are identified and implemented.
- Plant, tools and equipment selected to carry out tasks are consistent with job requirements, checked for serviceability, and any faults are rectified or reported prior to commencement.
- Material quantity requirements are calculated in accordance with plans, specifications and quality requirements.
- Materials appropriate to the work application including required fire resistance rating are identified, obtained, prepared, safely handled and located ready for use.
- Environmental requirements are identified for the project in accordance with environmental plans and statutory and regulatory authority obligations, and are applied.
- Passive and active fire control elements for roof construction are identified and applied.
- Set out and prepare members for roof erection.
- Set out for position of members is checked against top of plates in accordance with drawings and specifications for advanced roof construction.
- Pattern rafter is set out and cut to length allowing for overhang.
- Main ridge boards are marked and cut to length.
- Common rafters are cut to length and checked.
- Common rafters are erected in correct sequence.
- Bevels and lengths for hip and valley rafters are determined from pitch of roof.
- Hip and valley rafters are cut and fixed.
- Creeper rafters are cut and fixed from pattern rafter, allowing for overhang.
- Install roof support.
- Bevels and lengths for under purlins are determined.
- Under purlins are cut and installed.
- Struts are measured, cut and installed to under purlins, hips, valley and ridges to regulation.
- Collar ties are installed to regulatory requirements.
- Trimmers are fitted to gable ends to take gable end rafter and barge board.
- Valley boards are cut and fixed.
- Clean up.
- Work area is cleared and materials disposed of, reused or recycled in accordance with legislation, regulations, codes of practice and job specification.
- Plant, tools and equipment are cleaned, checked, maintained and stored in accordance with manufacturer recommendations and standard work practices.