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From 1 July 2021, the NCC will include new requirements for demonstrating compliance through Performance Solutions for building and plumbing work.
Currently, under NCC A2.2 Performance Solution, a Performance Solution must be shown to comply with relevant Performance Requirements through one or a combination of the Assessment Methods, Evidence of suitability provisions at Part A5, a Verification Method, Expert judgement or comparison with the Deemed-to-Satisfy Provisions.
From 1 July, where a Performance Requirement is proposed to be satisfied by a Performance solution, the following steps must be undertaken:
Prepare a performance-based design brief in consultation with all project stakeholders such as owners, engineers, designers, builder, certifier etc. The project stakeholders will be required to collaborate and agree on a pathway for the design process to follow. This includes selecting which of the assessment methods as outlined in the NCC is to be used. This step is critical as it sets the agreed acceptance criteria used to assess the solution against the NCC Performance Requirement.
Carry out analysis, modeling or testing using the Assessment Methods, to meet the agreed acceptance criteria set out in the brief.
Collate and evaluate results obtained upon completing Step 2 against the Acceptance criteria, to determine if the acceptance criteria have been met. If they are not met, then Step 2 may need to be repeated until the acceptance criteria are satisfied.
Prepare a final report that demonstrates that compliance with the NCC Performance Requirement has been achieved based on all of the previous steps and includes –
a. All performance requirements and/or Deemed-to-Satisfy Provisions identified as applicable;
b. Details all assessment Methods used;
c. Details of steps 1 to 4;
d. Confirmation that the Performance Requirement has been met; and
e. Details of conditions or limitation, if any exist, regarding the Performance Solution.
Details on the process is available on the ABCB website.
To assist in the development of Performance Solutions, the ABCB has produced a guidance document that addresses the above four steps in detail. It can be used for both simple and complex performance-based designs with the length and complexity of the process being proportional to the complexity of the design.
For more details refer to the full guidance document on the ABCB website.
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