Unit of competency Outline

Date retreived
23/07/2026 4:59 AM AWST

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Design and size roof drainage systems

Design and size roof drainage systems

Unit of competency
National Code
CPCPRF4011A
State Code
D7490
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
19/05/2011
View on TGA
State Implementation and Classification
Approved Date
11/10/2011
Field of Education
040327 - Plumbing
Original Release Date
11/10/2011
Nominal Hours
36
Description
This unit of competency specifies the outcomes required to design, size and document the layout of components of roof drainage systems.
Notes
Elements and Performance Criteria
1. Prepare for planning.
  • 1.1. Nature and scope of planning task are identified and confirmed.
  • 1.2. Safety (OHS) requirements associated with planning, sizing and documenting the layout of roof drainage systems, and workplace environmental requirements, are adhered to throughout the work.
  • 1.3. Work is organised and sequenced in conjunction with others involved in or affected by the work.
  • 1.4. Tools and equipment required for planning, sizing and documenting the layout of roof drainage systems, including personal protective equipment, are selected and checked for serviceability.
  • 1.5. Work area in which planning process is to be conducted is prepared.
2. Identify system requirements.
  • 2.1. Information and specifications for the required work are obtained and confirmed, if necessary by site inspection.
  • 2.2. Regulations and Australian standards relevant to the work are consulted and applied to all aspects of the work, including statutory and regulatory authority requirements.
  • 2.3. Roof catchment areas and design flows are determined from rainfall data and relevant Australian standards.
  • 2.4. Quantity and size of gutters, sumps, rain heads and downpipes are determined in accordance with relevant Australian standards, plans and specifications.
3. Plan system layout.
  • 3.1. Layout of roof drainage system is planned in accordance with development plans, specifications, relevant Australian standards and workplace procedures.
  • 3.2. Required materials and components of roof drainage system are specified and optimised in accordance with relevant Australian standards from the proposed design.
  • 3.3. Plans are recorded in accordance with regulatory authorities' and workplace requirements.
  • 3.4. Sustainability principles and concepts are applied to work preparation and application.
4. Restore work area.
  • 4.1. Work area is restored in accordance with workplace procedures.
  • 4.2. Tools and equipment used in the process are refurbished and left in accordance with workplace procedures.
  • 4.3. Documentation is completed in accordance with workplace requirements.
No information
No information
Replaces
State Code National Code Title Type
W9750 CPCPRF4001A Plan, size and lay out roof drainage systems Unit of competency
Replaced By
State Code National Code Title Type
WF956 CPCPRF4011B Design and size roof drainage systems Unit of competency
State Code National Code Title Type
D417 CPC40911 Certificate IV in Plumbing and Services Qualification