
Passive House 2025 Webinar Series – Webinar 4 “Alternative Wall Systems”
Event details
PHINZ is excited to present the fourth webinar in our 2025 series – Designers Webinars: How to Build A Passive House and Builders Social Webinars: Everything Passive House.
Webinar 4 – Builders Social
Topic: Alternative Wall Systems
When: 27 March 2025, 4pm – 5:30pm (includes a Q&A session)
Cost (members): $15.00
Cost (non-members): $30.00
If you have already registered for the previous Designers Webinar in March, there is no cost for this one but you will still need to register.
This talk will be relevant to Builders and Tradespeople and Passive House enthusiasts.
Join PHINZ for an in-depth online Q&A session with Glenn Harley, exploring the practical application of alternative wall systems. This session is tailored for builders and tradespeople working on Passive House and high-performance building projects. We will move beyond theoretical concepts, focusing on real-world examples and practical insights into installation techniques. We will discuss thermal performance and airtightness from a builder’s perspective, showcasing successful projects and addressing common challenges. The format will provide practical knowledge, enhancing understanding of installation and performance for successful project delivery.
Sponsors



Hosted and moderated by:
- Glenn Harley
Sponsors and Speakers:
- Stefan Warnaar, StrawSIPS
Stefan studied Chemical Engineering and spent a few years working in other fields before discovering the world of earth building after staying in earth houses while travelling through Central Asia. After working on rammed earth, hemp and straw houses it became clear that straw has huge potential to change the way we build in New Zealand and we have an abundance of straw available. Most of the rest of the world had shifted towards prefabrication of straw panels, and Stefan saw that as the only way forward and into the mainstream building audience in NZ. Since the start of COVID Stefan has been developing the panels and manufacturing process and the first houses began in 2024, with half a dozen more on the way for 2025.
- James Clarke, NZSIPS
One of the founders of NZSIP with over 22 years in the construction industry. Project Manager in Commercial and residential builds. Former owner of a construction company under which we built Passive House.
- Michael Goedert, Atamai Structures
20 years experience as a carpenter, overseas and NZ
- Started apprenticeship in 2004
- Came to NZ fully qualified as German Master Carpenter in 2013
- Worked since then in the passive house / high performance industry in NZ
- Started for Atamai in 2020
Experience in:
- Passive house / high performance from residential to office buildings
- High performance retrofits
- Engineered timber projects to high performance / passive house level