Unit of competency Outline

Date retreived
22/07/2026 7:28 PM AWST

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Conduct thermal performance assessment of residential buildings

Conduct thermal performance assessment of residential buildings

Unit of competency
National Code
CPPHES4004
State Code
OBJ24
TGA Status
Current
DTWD Status
Approved
Current Release Number
2.00
Current Release Date
19/05/2021
View on TGA
State Implementation and Classification
Approved Date
20/05/2020
Field of Education
040305 - Building Surveying
Original Release Date
20/05/2020
Nominal Hours
50
Description
This unit specifies the skills and knowledge required to analyse information to assess the thermal potential of the building envelope of planned residential buildings, and the thermal performance of existing residential buildings, including alterations and additions. Assessments involve a variety of building designs and materials across all jurisdictions using the regulatory mode of software accredited under the Nationwide House Energy Rating Scheme (NatHERS).This unit is for individuals who work independently using specialised knowledge and skills to complete thermal performance assessments. It involves completing routine and non-routine tasks and dealing with predictable and sometimes unpredictable problems.This unit forms part of the licensing requirements for thermal performance assessments. For further information, check with the relevant regulatory authority.
Notes
Elements and Performance Criteria
1 Prepare for thermal performance assessment.
  • 1.1 Consult with client to confirm scope and purpose of assessment and respond to questions to clarify issues and concerns.
  • 1.2 Research and apply jurisdictional regulatory and NatHERS requirements to planned thermal performance assessment.
  • 1.3 Obtain documentation and drawings for the assessment and review to verify consistency and sufficiency to meet software, NatHERS technical notes and regulatory requirements.
  • 1.4 Refer inconsistencies in documentation or drawings back to client for clarification and amendment.
  • 1.5 Request additional information required to conduct assessment to meet client and regulatory requirements.
  • 1.6 Check computer equipment to ensure correct operation and confirm that software version and libraries are up to date according to regulatory requirements.
2 Collate and input information into NatHERS software tool.
  • 2.1 Extract information required for input into software tool from building documentation and NatHERS technical notes.
  • 2.2 Enter extracted information into software tool according to regulatory requirements for the building.
  • 2.3 Enter information on non-standard building materials and designs, alterations and additions correctly according to software and regulatory requirements.
  • 2.4 Check inputted data and make necessary adjustments to ensure accuracy and compliance with regulatory requirements.
3 Model thermal performance of building.
  • 3.1 Apply software tool functions to model thermal performance of building.
  • 3.2 Run simulation to determine if the building’s potential thermal performance complies with regulatory requirements.
  • 3.3 Check simulation against latest documentation set and amend identified discrepancies.
  • 3.4 Analyse software tool outputs to clarify assumptions, identify limitations and correct errors in data entry.
  • 3.5 Interpret software tool outputs and profile building’s thermal performance.
4 Identify options to improve thermal performance of building.
  • 4.1 Analyse strengths and weaknesses in thermal performance of building.
  • 4.2 Access technical advice and identify cost effective options for improving thermal performance considering outputs of thermal performance assessment, practicality and type of building.
  • 4.3 Identify interactions of identified improvements on other aspects of building performance.
  • 4.4 Use software tool to reassess building and impact of identified options on thermal performance.
5 Report and certify thermal performance assessment outcomes.
  • 5.1 Finalise thermal performance assessment and collate design and assessment documentation in line with regulatory requirements in relevant jurisdictions and for auditing and quality assurance.
  • 5.2 Write up options and recommendations for achieving required energy efficiency rating according to regulatory requirements.
  • 5.3 Discuss assessment outcomes with relevant persons and obtain approval to proceed with certification according to organisational requirements.
  • 5.4 Submit NatHERS report through required portal to generate universal certificate.
  • 5.5 Confirm stamping is complete and secure documentation according to regulatory requirements.
  • 5.6 Store assessment documentation in accordance with regulatory requirements to enable recovery for audit and quality assurance purposes.
No information
No information
Replaces
State Code National Code Title Type
WE611 CPPHSA4012A Conduct NatHERS assessment of planned residential buildings Unit of competency