Home Style Green

More is not always better, especially regarding the amount of timber in the frame of a house. The more timber there is, the less space there is for insulation. The way this is measured is called timber fraction. Most homes in Aotearoa are designed using the assumption that timber will make up around 14% - 18% of the area in a wall. A 2020 BRANZ research study found that in reality, the average tim...

Denise Martin has been involved with many of Aotearoa's Passive House projects. As one of the most experienced blower door testers in the country, she's been involved with verifying a range of residential and commercial buildings both in New Zealand and Australia. I caught up with Denise to chat about how she got into building science in the first place and some of the challenges and opportunities...

I found it confronting listening to Tova O'Brien's guest this past week as she described the experiences of staying in motel emergency accommodation with a young daughter. From my relative privilege (of choosing the right parents and having things turn out ok for me so far), I find it hard to imagine being in this situation. But it's the reality for nearly 6,500 people across Aotearoa, half of who...

Last week, February 22nd rolled around. This was a significant date in the Cutler-Welsh household thirteen years ago when our house was located close to the Avon River in Christchurch. While it was a life-changing day for us, life has gone on. We ultimately lost our recently renovated home in Richmond as a result of the Canterbury Earthquakes, but many lost so much more.  What would a moratorium o...

There are fundamental gaps in what the New Zealand Building Code covers and how well it covers the aspects that are included. These reasons should be enough to justify using standards like Passive House or Homestar to go above and beyond the building code. In this series, I'll be looking at reasons why it's better to ask about the value and risk minisation resulting from higher performance standar...

As I draft this episode, there's a chorus of cicadas outside my window. The sun is shining and there's a faint breath of a breeze. It seems calm where I live, here in a relatively leafy part of Tāmaki Makaurau.  But all is not calm everywhere in Aotearoa today, Waitangi Day 2024.

There are not many new ideas in the building industry. The basic concepts have been around for a while. 'High-performance' products and design details that might be described as 'innovative' here in New Zealand are likely to be standard practice somewhere else. With building his experience in Europe and Scandanavia Richard Eden is well placed to help New Zealand builders do things better. He can o...

Brad Wills is Director: Strategic Customers & Programs at Schneider Electric. Based in Tennessee, he has three decades of experience with the organisation. We discuss the diverse range of products and services now offered by Schneider as well as the exciting opportunities for smart metering, microgrids, onsite battery storage and more.

In 2007 when Kim Feldborg arrived in New Zealand he was surprised at how cold and inefficient the houses were, despite growing up in much colder European climates. Originally from Denmark, Kim has built houses in Greenland, Norway, Germany and England. He now enjoys life in a Certifed Passive House he built himself in Taupō.

Growing up in a typical kiwi home, it wasn't until he had lived in the UK for a bit that Damien McGill realised we don't need to be suffering through winter in cold, damp houses. Damien is an engineer and knows how things should be put together so they don't fall apart. But he's interested in more than that. In this chat, Simon Cator and I discuss how Damien got into the Superhome Movement. We als...

Richard Houghton now lives in a very good, healthy home. But that wasn't always the case. Along with Simon Cator from Pro Clima NZ, we discuss Richard's journey in designing and building an energy-efficient SIP home just outside Auckland, New Zealand. 

Bert Sarkkinen has built a successful timber framing company around a solid philosophy grounded in the style and craftsmanship of a unique and timeless form of building. Bert appeared on the Home Style Green podcast back in episode 176. A couple of years on, Arrow Timber Framing has expanded into a larger facility and Bert has recently released the second edition of his book, The Art of Hybrid Tim...

Zola Rose has a vision for regenerative housing as a solution for improving communities and sustainability. She brings diverse and international experience to Aotearoa New Zealand where she now calls Nelson her home. Real estate has long been used as an investment and a means of making a profit in New Zealand. Zola explains how this has tended to undermine the values that we should otherwise assoc...

Mariano Croce is an Argentine entrepreneur who relocated into Queenstown with his young family just before the first COVID lockdown in 2020. He has a background in prefabrication, having co-founded a modular building company in Argentina when he was 24. More than 15 years on, Mariano has created Modulo.nz to provide architecturally designed, high-performance, modular homes built in New Zealand.

Darren O'Dea is a self-confessed building physics nerd. Along with co-founder David Carroll, he has helped to create Speckel, a platform for designing low carbon, healthier, durable and energy-efficient buildings. Having proven popular with architects and consultants in Australia, Speckel is now available in New Zealand. Find out more at https://www.speckel.io/

Sabine Schoenberg is co-founder of the Smart Healthy Green Living network, a collection of videos and streaming content on everything from tiny homes and carpentry to interior design and gardening. Through her network, Sabine is promoting the 'Do One Thing' campaign to help everyone take a step towards living a more sustainable life.

My third conversation with Simon Cator in our series on the control layers of a well-performing building envelope. In this episode, we cover the why and how of airtightness.

Hemp is an extremely versatile material. It may have a complicated recent history due to medicinal and other uses, but the benefits of industrial hemp have been known for a long time. Jo Say, co-founder of the Hemp Building Association New Zealand explains why it's a great time to start rediscovering some of the many benefits of building with hemp.

Following my previous chat with Simon Cator we continue our discussion about how to construct a good building envelope. This week we're focussing on keeping the weather out. We cover the benefits of a monolithic membrane instead of a microporous one, the importance of being resistant to water while maintaining permeability to vapour, and how to keep everything connected.

Casey Curtis shares tips on how and why to create airtight buildings, the benefits of mid-build open homes, and using collaborative design to create the right house on any given site.

Michael Rubino is an educator, author and an expert in mould remediation of homes. In this interview he shares his journey and some tips on how we can make our homes a better, healthier place to live.

Simon Cator is passionate about helping people to build better homes. Prior to becoming Regional Sales Manager for the Upper North Island at Pro Clima NZ, he worked for New Zealand's online architectural products library - EBOSS and also HRV before that. In this introductory episode, I spoke with Simon about the diversity of his role at Pro Clima and how he talks with people throughout the whole b...

Matariki is a festival that makes sense for New Zealand. It feels good to respect and learn from the wisdom of those who have inhabited this place for generations. It may have taken us 200 years, but we're creating our own vernacular; our own geographically appropriate culture of design.

Germán Molina trained as an engineer in Chile and has recently completed fascinating research posing the question 'what is comfort? at Victoria University in Wellington. Having come from what he describes as the 'warm side of engineering, he's long had an interest in energy efficiency. He didn't expect to be looking so much into human behavior. Germán has made some of the output of his research, f...

Tim Ross featured on Home Style Green back in episode 191 to talk about getting starting on New Zealand's first Passive House co-housing project. I interviewed Tim again a year ago as we were kicking off the Passive House Podcast, and the Dunedin High Street Co-housing project was well underway.