Navigating the Waves of Change: Understanding NCC Updates

The National Construction Code (NCC) is a vital document that shapes the construction industry in Australia. It serves as a comprehensive set of technical provisions for the design and construction of buildings. To maintain safety, efficiency, and sustainability, the NCC undergoes periodic changes and updates. In this blog, we will explore the importance of NCC updates, their impact on the construction industry, and key changes.


Why NCC Changes Are Necessary

  1. Safety: The foremost purpose of the NCC is to ensure the safety of occupants and the general public. As technology advances and new building materials are introduced, the code needs to adapt to address emerging safety concerns.
  2. Sustainability: Australia’s commitment to environmental sustainability is reflected in the NCC. Changes often focus on improving energy efficiency, reducing waste, and incorporating renewable energy solutions.
  3. Innovation: The construction industry is constantly evolving. NCC updates facilitate innovation by accommodating new construction methods and materials.


Key Changes in Recent NCC Updates in relation to healthy and comfortable buildings

  1. Building Membranes: The Building Code now mandates the use of vapour permeable membranes in climate zones 4, 5, 6, 7 & 8 for walls, and climate zones 6, 7 & 8 for roofs. (Part 10.8)
  2. Condensation Management: For unusual building assemblies, WUFI analysis can be conducted as a performance solution to show that no condensation will form within the structure. (H4V5)
  3. Blower Door Testing: New NCC changes in J1V4 and H6V3 require the testing of new builds, which must meet at least 10m3/hr/m2 @ 50PA. Anything less than 5m3/hr/m2 @ 50PA also requires a ventilation solution.
  4. Ventilation: All builds with an airtightness result of less than 5m3/hr/m2 @ 50PA require a mechanical ventilation solution. (H6V3)


The Impact on the Construction Industry

NCC changes undoubtedly have a profound impact on the construction industry in Australia. These impacts can be both positive and challenging.


  1. Increased Safety: NCC changes contribute to safer buildings, reducing the risk of accidents and ensuring the welfare of occupants.
  2. Sustainability Gains: The emphasis on sustainability encourages the use of eco-friendly building materials and designs, which aligns with global efforts to combat climate change.
  3. Innovation: NCC updates can foster innovation in the construction industry. New technologies and methods are incorporated, potentially improving efficiency and reducing costs over time.
  4. Healthier Builds: These NCC updates ensure that new builds are built to a higher standard that avoids the risk of condensation and mould forming, resulting in a healthier building for occupants. 


  1. Compliance Costs: For builders, developers, and property owners, adapting to NCC changes can be expensive. Meeting new standards may require investments in updated materials, equipment, and technologies.
  2. Adaptation Period: The industry often requires an adjustment period to adapt to new standards, which can temporarily disrupt workflows and timelines.
  3. Code Complexity: As the NCC becomes more comprehensive, navigating its complexities can become challenging, requiring specialised expertise.


Navigating NCC Changes

For construction professionals, staying informed and proactive is essential. Here are some strategies for navigating NCC changes effectively:

  1. Stay Informed: Regularly check for NCC updates, publications, and announcements from relevant authorities. This knowledge will allow you to plan ahead and make informed decisions.
  2. Continuous Learning: Invest in continuous education and training to keep your skills and knowledge up to date. There are often courses and workshops available to help professionals understand and implement NCC changes.
  3. Collaboration: Building strong relationships with industry peers and organisations can be invaluable. Sharing insights and experiences can help you adapt to changes more effectively.
  4. Consult Experts: When in doubt, seek advice from professionals who specialize in NCC compliance, including architects, engineers, and regulatory bodies. We pride ourselves in being across the relevant code changes for our products and services.

The NCC is a dynamic and essential document that shapes construction practices and standards in Australia. LAROS understand the importance of the NCC and adapting to NCC changes being crucial for maintaining the safety, sustainability, and efficiency of the construction industry. By staying informed, investing in education, and collaborating with peers and experts, professionals can navigate the waves of change brought by the NCC, ultimately contributing to the betterment of the construction landscape. Keep an eye on the latest NCC updates to ensure that you remain at the forefront of industry best practices.


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