Agenda
Airtightness Masterclass
Thursday 21 May, 2026
12.30pm Welcome and introduction
Moderator: Jim Ng, Technical Services and Innovation Lead, Green Building Council of Australia
12.32pm Presentation: Examining the minimum expectations for air tightness requirements in Green Star Buildings
Airtightness is now a minimum expectation under Green Star Buildings, setting a new standard for improved building practices and performance outcomes. Hear more about how the rating framework aims to improve whole-building performance.
Speaker: Jim Ng, Technical Services and Innovation Lead, Green Building Council of Australia
12.50pm Presentation: Blueprint for Success with Airtightness: Documentation and design reviews that do something useful
This session will take you through the steps to navigate the submission documentation process and draw on project examples with measurable results. Hear more about commissioning testing and how to review any oversights in the process.
Speaker: Sean Maxwell, Scheme Manager, ATTMA Australia and New Zealand
1.30pm Discussion groups: Common challenges and solutions in achieving airtightness
In smaller groups, participants will discuss some of the common challenges experienced and how these have been overcome. Questions to be asked include:
- What are some of the targets you have used?
- What can we learn from regional differences and experiences?
1.45pm Feedback from discussion groups
1.55pm BREAK
2.05pm Presentation: Unlocking the opportunities in Air Tightness
This session will explore how simple, cost-effective air tightness practices can deliver quality assurance, reduce risk and create opportunities for builders and trades to achieve better outcomes with confidence.
Speaker: Samantha Anderson, Senior Associate building Physics and Sustainability, Inhabit
2.30pm Presentation: Air Tightness Performance – Understanding the spectrum
How do we design air tightness for the best possible performance? Hear more about overcoming challenges and learning from best practice.
Speaker: Joseph Cheung, Technical Manager, Efficiency Matrix
2.55pm BREAK
3.05pm In conversation
Why does airtightness often fail in practice? Hear how bridging the gap between design intentions and onsite execution is critical to delivering sustainable buildings.
Speakers: Speaker: Sean Maxwell, Scheme Manager, ATTMA Australia and New Zealand & Steve Van Bibber, Quality Manager, Hutchinson Builders
3.30pm In Conversation Case Study: New Frankston Hospital
Speaker: John Konstantakopoulos, Managing Director, Efficiency Matrix + Christopher Piperidis, Project Manager, Multiplex
4.00pm Q & A with Sean Maxwell, Scheme Manager, ATTMA Australia and New Zealand & Jim Ng, Technical Services & Initiatives Lead, Green Building Council of Australia
4.20pm Wrap up & session close