What is a Section J Report?

Are you planning to build or renovate a commercial building and found out that you need a Section J Report? 

Are there building regulations and energy efficiency standards you need to comply with? Do you wish there was an easier way to go about getting certifications for your building? 

If you answered “yes” to any of the above, then read on about: 

What is Section J? 

Purpose of Section J Report: A Section J report is necessary when applying for a construction certificate for commercial buildings to demonstrate compliance with energy efficiency requirements. 

Primary Audiences: The report is primarily designed for two readers: 

  • The certifier, who needs to verify compliance. 
  • The client, who wants clear instructions on how to achieve compliance. 

Variability in Report Quality: Not all Section J reports are the same; some only list applicable clauses without assessments, while others provide detailed analyses and compliance pathways. 

Importance of Including Assessments: A proper Section J report should include detailed assessments showing how compliance will be met to avoid future issues and ensure clarity for all parties. 

Critical Content Elements: Essential elements in a thorough Section J report include project details, document control, an executive summary for clients, compliance pathways, the full assessment, calculations, and appendices defining thermal envelopes and other detailed data. 

Role of Supporting Documentation: Attachments or appendices are important for showing detailed calculations, insulation parameters, thermal zone boundaries, and other technical information critical for peer review and certifier validation. 

Illustrative Example Structure: The example report includes a cover page with project info, document control updates, an executive summary outlining client action items, a detailed fabric and compliance assessment against code requirements, and appended technical details.

A Section J report is required when applying for a construction certificate for a commercial building, but it seems not all Section J reports are the same. In this video, we’ll explore why that might be and what you should expect in a Section J report. 

A Section J report is really designed to be read by two different audiences. The first is the certifier, who wants to see that compliance has been achieved. The second is the client, who just wants to know what they have to do to comply. 

Often, when applying for a construction certificate, a simple BCA-style report is prepared, which is sufficient for the certifier at that point. This type of report identifies the Section J clauses relevant to the project but doesn’t include any assessment. You might see wording like, “This clause applies. Confirmation to the certifying authority within the construction documentation is required.” This kind of report identifies the clauses as applying but leaves the method of compliance to be determined later. While this may be enough for the construction certificate, it’s not best practice. 

The report should include the assessment to show how compliance will be achieved. This way, everyone is confident that the building will comply. Without the full assessment, compliance issues may not come to light until it’s too late. 

In another example, a simple report might quote values such as required insulation values or U and SHGC values without showing the workings. Any report that doesn’t show the workings cannot be peer-reviewed. Even without a peer review, the certifier has no way to verify the methodology used to arrive at the quoted values. The report may even be rejected on that basis. 

So, what should be in a Section J report? 

Firstly, there should be some basics: the address, the project description, the scope of work, the applicable version of the code, and document control. 

Secondly, a summary of the items required to achieve compliance based on the assessment should be included. This is very useful for the client, who is focused on knowing what they need to do. 

The report should include a BCA compliance pathway and the assessment itself. There may also be detailed information such as calculations and the definition of the thermal envelope, which might be included in an appendix. 

Let’s look at a practical example. These items can be put together in different ways, but I’ll use one of our projects to illustrate. 

The first page of our report includes the project description, address, building code edition, date, edition number, and our contact details. The second page is devoted to the document control box, showing three editions. Each time the design changed, an updated assessment was needed. This section describes what each edition updated. 

Next is the executive summary, which is really for the client. It clearly lists all the things they need to do to comply, based on the assessment that follows. Clients often focus on this section. 

Another page shows that Section J is quite comprehensive. It’s helpful to have everything listed in one place. At the end of the executive summary, there’s a table summarizing the fabric assessment. This is the biggest part of the assessment. The left-hand column lists all the items that need to be complied with. The middle column shows the code’s threshold requirement, and the right-hand column shows what we’ve achieved. For example, the roof requirement is R3.7, and we achieved R3.8, so we’ve complied. This is done for each line item. 

Then we move into the assessment. We repeat some information from the front page, such as the project description, building classification, climate zone, designer, and a list of drawings used in the assessment. 

Next is the compliance pathway, with responses or statements against each item under J1, J2, and J3. J4 begins the actual assessment, which is the fabric section. Some calculations are included here, and the detailed workings are found in the appendix. 

In the appendix, the first part defines the thermal envelope and areas of insulation. Since the thermal envelope is a three-dimensional concept, we’ve marked up section drawings to show how it covers the roof, walls, and floor. The rest of the appendix contains detailed calculations, including lighting calculations. 

This example shows what should be in a Section J report and how we approach it. There are different ways to put it together, but hopefully, this example is helpful. 

Thanks for sticking through the video—I hope it’s been helpful. 

Section J is part of the National Construction Code (NCC), which sets the minimum requirements for the design and construction of buildings in Australia. Specifically, Section J deals with the energy efficiency of buildings, aiming to reduce greenhouse gas emissions and energy consumption.  

A Section J report aims to show compliance with provisions for building elements such as walls, roofs, floors, windows, lighting, air conditioning, and ventilation. A qualified energy efficiency consultant can prepare the report after an assessment of the building elements. 

A Section J report is required for Class 2-9 buildings, except in NSW, where residential Class 2 and 4 parts of a building are predominantly subject to the Building Sustainability Index or BASIX requirements. 

CLASS DESCRIPTION 
1 Houses and other buildings used for residential purposes 
2 Buildings containing sole-occupancy units which are dwellings (e.g. apartments, blocks of flats) 
3 Accommodation buildings, such as hotels, motels, and backpacker hostels 
4 Dwellings in other buildings, such as a shop-top apartment 
5 Office buildings, such as a professional office 
6 Shops and other retail buildings 
7 Buildings used for car parking, storage, or display 
8 Factories and other buildings used for manufacturing, assembling, or processing goods 
9 Buildings used for health care, such as hospitals, clinics, and nursing homes 

Also, councils and other authorities may sometimes require a Section J report to accompany a Development Application and/or Construction Certificate (NSW) application in order to proceed.   

What is in Section J? 

Section J consists of eight parts, each covering a different aspect of energy efficiency, as follows: 

  • Part J1 to J3: Energy Efficiency – General Requirements 
  • Part J4: Building Fabric 
  • Part J5: Building Sealing 
  • Part J6: Air Conditioning and Ventilation Systems 
  • Part J7: Artificial Lighting and Power 
  • Part J8: Heated Water Supply and Swimming Pool and Spa Pool Plant 
  • Part J9: Energy Monitoring and On-site distributed energy resources 

Each portion specifies the minimum performance requirements for the relevant building elements. They also outline the methods for demonstrating compliance. Section J compliance can be achieved by either meeting the prescriptive Deemed-to-Satisfy (DTS) provisions, or by using an alternative pathway such as a Performance Solution.  

History and Updates to Section J 

Section J was introduced in late 2006 as part of the Building Code of Australia (BCA, later renamed as the NCC). BCA Section J has since undergone several revisions to reflect the changing technologies, market conditions, and policy objectives. Below are the primary changes made. 

2010 Revision  

  • Increased the stringency of the energy efficiency requirements by 10% to 40%, depending on the building type and climate zone 
  • Introduced new provisions for insulation, glazing, lighting, and air conditioning 

2016 Revision   

  • Further increased the stringency of the requirements by 5% to 35% 
  • Added new provisions for building sealing, air movement, heated water supply, and swimming pool and spa pool plant 
  • Aligned Section J with the National Energy Productivity Plan (NEPP) and the National Greenhouse and Energy Reporting (NGER) scheme 

2019 Revision   

  • Set an average increase in stringency of 40% 
  • Introduced a new method of assessing wall/glazing systems 
  • Aligned Section J with the international standards for energy performance of buildings (ISO 52000) 

Beyond Compliance: Benefits of Section J Reports 

A Section J Report is a requirement for obtaining a building approval as well as a valuable tool for improving the environmental and economic performance of your building. By complying with Section J, you can: 

  • Reduce your energy bills and operating costs 
  • Enhance comfort and indoor environment quality 
  • Increase your building’s asset value and marketability 
  • Minimise the environmental impact and carbon footprint of your building 
  • Demonstrate your social responsibility and leadership 

A Section J Report can also help you identify opportunities for further improvement, beyond the minimum requirements. Those can include incorporating renewable energy sources, passive design strategies, or high-performance materials. 

How to Get a Section J Report 

You first need to engage a qualified energy efficiency consultant who can assess of our building design against the relevant provisions. The typical process is as follows: 

  1. Review of plans 
  2. Identification of requirements relevant to your building 
  3. Energy modelling (if required) 
  4. Identification of issues and compliance solutions 
  5. Report preparation

Need a Section J?  

If you want an expert consultant you can rely on to produce a high-quality Section J Report, Application Solutions can help. We have been assisting building owners, builders, certifiers, architects, and designers achieve energy efficiency compliance for over 16 years. Contact us today to find out how we can help with your building project requirements.

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