Construct pitched roofs

Unit of competency Outline

Date retreived
22/07/2026 12:54 PM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Unit of competency

National Code
CPCCCA3007

State Code
OCR02

TGA Status
Current

DTWD Status
Approved

Current Release Number
3.00

Current Release Date
24/12/2024

View on TGA

State Implementation and Classification

Approved Date

01/06/2021

Field of Education

040311 - Carpentry And Joinery

Original Release Date

01/06/2021

Nominal Hours

Description

This unit of competency specifies the skills and knowledge required to set out, construct and erect pitched roofs to accommodate roof coverings for weatherproofing purposes, meeting all relevant requirements of the National Construction Code (NCC), Australian Standards, work health and safety (WHS), and Commonwealth and state or territory legislation. The unit includes determining the required materials and process, and constructing scotch valley gable, broken hip and valley roof structures.Completion of the general construction induction training program specified by the model Code of Practice for Construction Work is required for any person who is to carry out construction work. Achievement of CPCWHS1001 Prepare to work safely in the construction industry meets this requirement.No licensing, legislative or certification requirements apply to this unit at the time of publication.

Notes

Elements and Performance Criteria

1 Plan and prepare.

1.1 Read and interpret work instructions and plan sequence of work.
1.2 Plan all work to comply with laws and regulations, the National Construction Code (NCC), Australian Standards, work health and safety (WHS) and environmental requirements, manufacturers’ specifications, workplace requirements, drawings and specifications.
1.3 Select tools and equipment, check for serviceability and report any faults.
1.4 Select and use personal protective equipment (PPE) for each part of the task.
1.5 Inspect work site, locate services, assess hazards and apply risk controls, including required signage and barricades.
1.6 Select materials required for task, calculate quantities, handle safely and prepare and position ready for use.

2 Set out, prepare and erect pitched roof members.

2.1 Set out and mark position of members on top plates for roof type and rafter spacing.
2.2 Determine bevels for all roof members.
2.3 Calculate and set out pattern rafter to length allowing for overhang and creeper reductions.
2.4 Set out and cut main ridge boards to length.
2.5 Cut common rafters to length, and check.
2.6 Erect common rafters in correct sequence.
2.7 Calculate lengths for hip and valley rafters from pitch of roof.
2.8 Cut and fix hip and valley rafters.
2.9 Cut and fix creeper rafters from pattern rafter allowing for overhang.

3 Install roof support.

3.1 Determine lengths for under-purlins.
3.2 Cut and install under-purlins.
3.3 Measure, cut and install struts to under-purlins, hips, valley and ridges.
3.4 Install collar ties and tie-downs to span tables in AS 1684 Residential timber-framed construction.
3.5 Fit trimmers to gable ends to take gable end rafter and barge board.
3.6 Cut and fix valley boards and surrounding battens.

4 Clean up.

4.1 Clean up, meeting all legislative and workplace requirements for safety, waste disposal and materials handling.
4.2 Check, maintain and store tools and equipment and report any faults.

No information

Replaces

State Code	National Code	Title	Type
WE978	CPCCCA3007C	Construct pitched roofs	Unit of competency

State Code	National Code	Title	Type
BGB8	CPC30220	Certificate III in Carpentry	Qualification