Training Courses

Design and size roof drainage systems



Course / qualification / unit code and title

CPCPRF4011B Design and size roof drainage systems

Design and size roof drainage systems course details

Course overview 

This course provides learners with the skills and knowledge to design, size and document the layout of a variety of commercial and residential roof types including those with eaves gutters, box gutters, sumps and/or rainheads.

It covers preparing for the work, identifying and confirming system requirements, design system layout and work finalisation processes, including documentation.


Prerequisites / entry requirements

There are no pre requisite units for this unit of competency.

However learners must have completed the Certificate III in Plumbing or equivalent and be registered in roofing.


It is also recommended that learners are able to demonstrate language, literacy and numeracy skills equivalent to Level 3 and Level 4 of the Australian Core Skills Framework (ACSF).

All new entrants to this unit will be required to undergo a pre assessment of their language, literacy and numeracy designed to identify their level of ability against the ACSF.

Course structure

Course delivery involves:

  • 33 hours of trainer led learning and assessment over 11 weeks, one (1) evening per week
  • plus approximately 47 hours self directed learning prior to/or during course attendance.


Course duration

80 hours

Course outcome

On successful completion of this course learners will be able to:

  • prepare for design work
  • identify system requirements for roofing work, catchment areas and design flows
  • plan and design the system layout for roof drainage systems
  • apply relevant safety, quality assurance and sustainability requirements
  • identify and complete all relevant documentation.


Course recognition

Learners successfully completing this course will receive a Nationally Recognised Statement of Attainment.

This unit is required by the Victorian Building Authority for registered plumbers who wish to seek their licence in roofing. It is an accredited unit of competency in CPC40912 Certificate IV in Plumbing and Services.

Assessment arrangements

Assessment for this course requires learners to:

  • complete a theory assessment
  • undertake four (4) practical assessment related to the design, sizing and lay out of roof drainage systems.


External assessment

The VBA external assessment for the roofing licence will be held at the completion of the course for those leaners who wish to undertake it.

Course fees

Refer to PICAC training calendar for current course fees.


Additional fees

Additional fees apply to the application for the roofing licence. These will be invoiced separately by the VBA.