Section J vs JV3: Which should I use?

Section J and JV3 are two compliance pathways under the National Construction Code for commercial buildings. Your choice depends on your building’s design, budget and flexibility needs.

Short answer

Use Section J (Deemed-to-Satisfy) for straightforward buildings. Choose JV3 if your design is complex, glass-heavy or needs more flexibility to meet energy rules.

Full answer

Section J offers a prescriptive compliance method where each element must meet minimum performance levels. It is simpler but can limit design options.

JV3 is a performance-based modelling method that uses simulation software. It allows more design flexibility and can be more cost-effective for certain projects.

Factors to consider:

• Is your building highly glazed or irregular in shape?
• Do you need to reduce glazing specification costs?
• Is innovation a key part of your design?

If so, JV3 may offer a better outcome.

Why this matters

Choosing the right compliance path early in the process can save time, money and redesign effort.

How Certified Energy can help

We help you compare both methods and choose the most efficient one for your project. Our team delivers both Section J and JV3 Reports with expert advice.

Related regulations

• NCC 2022 Section J
• ABCB Performance Solutions framework
• NatHERS, Deemed-to-Satisfy or Verification methods

Helpful resources

• What is a Section J Report?
• What is JV3 modelling?
• When is a Section J Report required?
• What does a Section J Report include?