ALL certified PH builds in NZ have been written up

Here’s a handy short cut to case studies on all certified Passive House projects in New Zealand to date. Phcert.nz will take you to the Sustainable Engineering website’s case study section.  The case study initiative began with my book, Passive House for New Zealand, in 2019, which included case studies up to the award-winning Kowhai House. Once the case studies …

We won’t get to zero carbon without energy efficient homes

It’s great to see this piece in popular media, outlining research that shows that, like the rest of the world, New Zealand’s path to a zero carbon future requires homes that need nearly no power for winter heating. The Passive House standard is measured and verified in New Zealand as needing 90% less energy to heat both new homes and …

Leadership needed in NZ educational sector

New Zealand got underway with Passive House before our Aussie mates but sadly we’ve been thoroughly surpassed in the last couple of years. We have no Passive House projects to rival the scale and ambition of Monash University’s Woodside Building for Technology and Design. The striking five-storey building is a “living lab” for IT and engineering students and researchers, deliberately …

Energy-efficient builds increase sales price: Aus study

I’m often asked for data on the price premium a certified Passive House would command compared to the same house built to the legal minimum requirements of the New Zealand Building Code. It’s hard to know as the numbers are so small and Passive House homes so rarely come onto the market. So far they have been rarely built with …

Join US expert on marketing PH to homeowners

I’m looking forward to this seminar on how to effectively market Passive House and encourage those working on and designing Passive Houses to attend. This Zoom seminar is hosted by the Passive House Academy New Zealand on 29 June 2021 at 11am. It features John Oppermann, a US real estate agent (and executive director of the Earth Day Initiative), who …

Worthwhile training course: next week!

I highly recommend attending the New Zealand Institute of Building Surveyors’ training day in Auckland on 20 March. You’ll hear about Kāinga Ora moving to low carbon building at scale, MBIE’s Building for Climate Change programme and see the latest on the High Performance Construction Detail Handbook. I promise it’ll be PH through and through. All the details, including how …

The Building Code is a minimum, not a quality mark!

I’ve had clients call me with issues but then tell me, “the salesperson said it met Building Code”, as if that means something. All it means is the developer wasn’t allowed to build it any worse. This quote from the latest BRANZ Guideline newsletter (Feb 2021) comes with emphasis added by me: “The Building Code is not a quality mark …

Mechanical ventilation everywhere: not just high-performance buildings

Well-built high-performance buildings need mechanical ventilation. Times have changed, nobody’s really arguing about this any more. But all the other homes built in the last 50 years need mechanical ventilation also—those that only just met the Building Code minimum standards of their day. They’re not airtight (many of them are horribly draughty) but they still need proper ventilation. How do …