Avsnitt
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In this episode of the pro clima Podcast, Steve shares his journey from living in a renovated 1860s villa in Ponsonby, Auckland, to building an off-grid Passive House in Coromandel. He recounts how the villa’s renovation revealed issues with heat retention, leading to high energy costs and discomfort. This experience, along with a desire to live more sustainably, inspired his family's move to Coromandel, where they began with minimal infrastructure, even living in a tent while constructing their new home.
Steve discusses with Simon the process of building the new passive home, emphasizing the importance of energy efficiency through careful design and the challenges of using unconventional building materials. He explains the significance of proper ventilation, airtightness, and thermal performance for a comfortable home environment and provides insights on energy modelling, cost considerations, and meeting Passive House standards. Steve also addresses the broader context of New Zealand’s housing, stressing the need for improved thermal performance and energy efficiency.
Throughout the podcast, he shares valuable lessons from his hands-on experiences and encourages others to consider sustainable building practices, whether in new constructions, smaller dwellings, or retrofitting projects. Special Guest: Steven Hughes. -
In this episode of the pro clima Podcast, Joe shares his personal journey in architecture, from his childhood in a 1890s farmhouse to pursuing a career in architecture and later moving to New Zealand for a better work-life balance. Facing unhealthy rental conditions in New Zealand, Joe and his wife decided to build their own house to ensure a healthier living environment for their family. They prioritized continuous insulation, high-quality windows, and proper ventilation while balancing budget constraints. Despite challenges, including high construction costs and bank valuation issues, Joe creatively managed to design and construct a functional, affordable, and healthy home by making various compromises.
Joe and Simon discuss building code compliance and energy modelling in New Zealand. Joe highlights the limitations of the building code in ensuring thermal performance and comfort, and argues that energy modelling is the only reliable way to assess a building's performance, as it considers all building elements and the specific site and climate. Energy modelling helps ensure building performance outcomes are met, saving money and reducing carbon. Tune in for more. Special Guest: Joe Lyth. -
Saknas det avsnitt?
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In this episode of the pro clima Podcast, Simon Cator and Jon Davies speak to Building and Construction Minister Chris Penk.
The discussion revolves around the Minister’s desire to build “Simply, Cheaply and Quickly” - the recent controversial media furore regarding the government's signal to roll back the H1 insulation standards and other building and construction-related issues.
The discussion also touches on easing the regulations for granny flats, developing well-qualified construction workers and revising regulations to maintain building standards. Special Guests: Chris Penk and Jon Davies. -
"I hope we'll see a change in the outcome for renovation work which has energy modelling and predicted energy demand for that building - for any building - in play during the design process; and then just put some minimums around that."
In this podcast, Jon discusses his transition from teaching to the building industry where tangible results were more easily visible. He talks about a home renovation project, emphasizing the importance of creating a comfortable living environment by addressing common issues like drafts and poor insulation. Jon describes his Masters thesis - the use of Parka Wrap - retrofitting insulation onto existing walls - designed to improve airtightness and contribute to a more controlled indoor environment and energy efficiency in buildings.
Jon advocates for continuous improvement and innovation in building practices. By staying updated with the latest technologies and methods, builders can enhance the quality and efficiency of their constructions. This is particularly important for the retrofit challenge, aimed at improving the performance of existing buildings to enhance the health of their occupants. Special Guest: Jon Davies. -
"Ask yourself, what is your house going to be worth in 2030. A certified Passive House is on the operating levels, energy-wise, of where we're going in 2030. So do you consider your house an investment? I think we put more consideration into the performance of the cars that we buy than we put into the houses that we are creating, and our homes are the largest financial investment that we make in our lives."
In this podcast, Sharon advises homeowners to research the Passive House principles via the Passive House Institute of New Zealand (PHINZ) website, focusing on insulation, airtightness, quality windows, ventilation, and thermal bridging. She emphasizes the importance of discussing energy efficiency and comfort with building professionals early in the design process. Building high-performance homes from the start is more efficient than upgrading conventional homes later, and smaller, better-performing homes can also be more efficient.
Sharon and Simon also discuss misconceptions about building codes often leading to minimal standards being mistaken for optimal performance; energy modelling and data-driven design are essential for achieving true efficiency and comfort, with professional designers offering long-term savings despite higher initial costs. Special Guest: Sharon Robinson. -
Dr. Straube explains the importance of the critical elements of the building structure, balancing insulation values with good airtightness levels and high-performance windows: "It's a rule of physics that you need to be able to match those three components of typical houses to get the value out of each one of those components."
In this episode of the pro clima Podcast, John Straube emphasizes the importance of balancing components such as insulation, airtightness, windows and ventilation in building design to achieve optimal energy efficiency and indoor air quality. He explains that airtightness is often misunderstood but is crucial for maintaining a healthy indoor environment. Dr. Straube also discusses the principles of rainscreen design, considering the cladding, drainage, and water-resistant barriers, all tailored to local climates and building codes. Special Guest: John Straube. -
"We moved into a brand new house in Taupo, it was double-glazed and looked good, but it was blimmin' cold. I couldn’t understand why people would put up with it. Because of this environment, we decided we wanted to live in a more comfortable house."
In this episode of the pro clima Podcast, Simon Cator interviews Kim Feldborg, a builder from Denmark who moved to New Zealand in 2007. Shocked by the cold temperatures in his rental home, Kim decided to design and build a Passive House, which he and his family have been living in for over ten years now. Kim explains the differences in home heating between Denmark and NZ, noting that Danish homes typically have central heating systems, whereas Kiwi homes often lack adequate heating. He shares his journey in designing his own Passive House, including sourcing materials and ensuring airtightness. Kim highlights the energy efficiency of the house, which maintains a constant temperature with minimal heating costs. He also addresses common misconceptions about airtight homes, emphasizes the benefits of ventilation systems and discusses the new H1 compliance. Special Guest: Kim Feldborg. -
"Modelling approach is the most accurate way of looking at a building. The overall performance really needs to be modelled."
In this episode of pro clima podcast, Darryl shares insights from his experience with energy-efficient building projects, including the Piha EnerPHit renovation and the Legacy House. He talks about the importance of improving the performance of existing homes in New Zealand, proposing standardized systems to facilitate retrofitting. Darryl highlights the challenges of addressing issues like condensation moisture management and airtightness in the Building Code. He emphasizes the need for a holistic approach to building design, advocating for increased industry skills and the adoption of modelling approaches to ensure overall performance of buildings meets high standard and comfort. Special Guest: Darryl Sang. -
“We accept a lot just because we don’t know any different.”
In the second episode of pro clima podcast, Natasha explains how seeing her relatives work in construction sparked her interest in architecture, which she sees as a combination of art and science. From her experiences with leaky buildings to addressing challenges in the industry, we discuss the current state of the New Zealand construction sector, focusing on economic difficulties and the urgent need to address carbon emissions. Looking ahead, she advocates for a shift towards sustainable, energy-efficient building practices, emphasizing holistic approaches to building performance and the importance of homeowner awareness in selecting architects. Natasha champions prioritizing simplicity, efficiency, and comfort in building design, highlighting the potential of energy modelling to deliver better outcomes while saving costs. Special Guest: Natasha Cockerell. -
"It's not a rocket science, it's a building science!"
In the first episode of the pro clima podcast, we're talking to Joe Lstiburek, the Godfather of Building Science. He delves into his journey from designer to advocate for improved building practices, emphasizing the importance of learning from past mistakes, like weathertightness issues seen in the US or Canada. He reckons the New Zealand construction industry should learn from these mistakes, not keep repeating them. Joe also discusses ventilation concerns and the role of dehumidifiers, suggesting a balanced approach to efficiency. Additionally, he talks about upcoming advancements in design and materials. He stresses the need for education to prevent similar problems from arising in the future. Special Guest: Joe Lstiburek.
