Tag Archives: EfficiencyFirst

PIHA HOUSE started in 2019 as pretty much a standard renovation of an existing 2012 build, using European quality exterior joinery and more insulation. Although the brief was not Passive House quality, it was continued work for myself and team, considering I am a Certified Passive House Builder.

Work started, removing interior linings to add extra insulation and hello, we found mould, particularly in the closed cell roof cavity, but also in the walls.
As we now know, dew point is real and really brings home the problems it can cause if positioned in the wrong place, or allowed to be positioned in the wrong place.

As my client had health problems associated with mould sensitivity, the only way forward was to reassess and consider Passive House construction.

The decision was very quick, YES !!! No other way.

Sang Architects were bought in as they specialise in Passive House Architecture, and Jason Quinn from Sustainable Engineering as our adviser and, can I say mentor, and PHPP engineer and Certifier.

As this was the first EnerPHit project in NZ, we were definitely in a new space, but very exciting at the same time. Who doesn’t love a good challenge with something you are passionate about?

The construction was really so much fun, testing us at every corner, but with the end result in the back of your mind all the time, WILL WE GET CERTIFICATION, is a huge driving force.

One of my guys, Visko, spent six weeks air tight taping exterior protrusions from the treated area envelope to the exterior, probably using 60 rolls of Proclima Tescon Vana tape.

During the process of the job I was lucky to be able to purchase a second hand Blower Door kit, this was invaluable to check our work as we progressed.

One very significant piece of this job was the interaction of upper floor exterior concrete decks above treated floor areas below.
To mitigate thermal bridging, 80mm insulation board was glued to the underside of the concrete decks with 20mm EPS board glued onto the walls, 600mm down from the ceiling, Jasons Quinn’s calculations and thermal bridging imaging gave us this specification. Also to mitigate dew point on the interior between the underside of concrete and the insulation board, the ceiling was suspended allowing for the ventilation return air to permeate through this cavity, we also integrated a baffles system, basically a labyrinth of wads at one metre centres running the length of the enclosure with a gap in the centre of the first wad and then a gap at each end of the next wad and so on. This made the air flow encompass the whole space instead of making a one track to the return pickup.
Actually, this was my clients idea, brilliant idea.

As this was an existing concrete block, two story solid plaster exterior painted finish, Jason advised that we would use the painted plaster as our air tight wall barrier, and the existing bitumen membrane roof as the roof barrier.
Exterior insulation was installed over the outside of these existing claddings, wall cladding continuing down to the foundations to a minimum of 600mm below floor slab height.
So, Stotherm with 100mm Graphite board and 160mm warm roof with bitumen Nuraply.

As my clients are very natural product driven, the interior was all timber types, coated with non toxic products, Osmo being the most used.

The job was completed in February 2022 with CERTIFICATION !!

Photo: Sang Architects

I would thank all involved. What a project!

Piha House EnerPHit can be viewed here on the Sang Architects website.

Progress in teaching clients the importance future building technology offers, has been quite slow over the last ten years, but noticeable interest gaining each year, to the point now that the Government are building Kāinga Ora developments to Certified Passive House standard. This in turn is directing Standards NZ to adopt climate zoning for insulation values, next in line is exterior joinery. Before you know it, Passive House will be the new NZ build standard.

-Terry Bryers, Bruyere Ltd

Share this:

What are the important things that make your life comfortable..healthy…happy? If you scaled that idea up to your community, have you ever thought what that community might look like? Would it be a place where you’re not shivering by a fire at night so you don’t spend too much on power? Or where your child isn’t coughing from the mould in their bedroom or the condensation down their windows in the morning? Or would it be walking into a school or workplace in winter and staying comfortable all day so you can think on more important things? In that community, would it be taken for granted that everyone naturally had access to that comfort and health?

We wanted to find this out too, and to see what differences were being made in the community by doing the Passive House courses at the ground level. What we received was an inspiring insight from Certified Passive House Tradespersons Glenn Harley from Harley Builders and Lenny Basham from Basham Building Ltd

Here’s what Glenn had to say….

By the time I signed up for the Passive House Tradesperson course, our company had already completed a couple of Passive House projects. The course offered by PHANZ dovetailed (sorry) nicely with the practical realities of a Passive House build.  I found the opportunity to calculate U values of various building materials interesting and applicable.  We got a window (there I go again) into European building techniques and products.
Kara has a witty and direct style honed from many years of teaching people how to build better. She is a fantastic resource available right here in Aotearoa.

And Lenny highlighted how the CET course made a tangible difference to him and his business….

As a passionate carpenter, I would highly recommend the Passive House Tradesperson Course. Previously, I had attended a Primer in Wellington. So I thought I had a reasonable understanding of what a Certified Passive House was. However, after completing the course, I had a much more comprehensive knowledge base on all things Passive and a lot more confidence in the field.

There have been many benefits to completing this course. It has enabled me to have educated debate with designers and engineers on how a building will perform. This has allowed me to dictate material choices and approaches to design. These professionals have been grateful to have someone that knows about thermal bridging or allowing for services such as ventilation in the design stage. This has then made the build easier.

The course gave me knowledge so that I have been able to work with designers in the certification process of a Passive House. We would’ve missed a heap of documentation such as key photos or detailing around airtightness if I had not completed the course. This would’ve been costly financially or we wouldn’t have a building that achieved Passive House standard.

Another bonus has been the ability to impress clients on how a home can perform and school them up on Passive details and design. That has seen me win a couple of tenders where competitors didn’t know about heating demands and the importance of good design.

The whole concept of a Passive House can be quite daunting at first. There’s so much detailing and numbers to get your head around compared to a standard build. A lot of it is quite intellectual and scientific. As a carpenter, you wonder what its relevance is, when all you want to do is build a quality home? The course helps bridge the gap between the design nerds behind the numbers and the fellas onsite who actually create the beast. The CET Tradesperson course gives you confidence to navigate through the whole process and it would simply be a whole lot harder to build a Passive House if you didn’t school yourself up first and do the course. I highly recommend it.”

The next in-person Certified Passive House Tradesperson’s course is happening in Auckland in May. You can find all the info on this, along with courses for Designers and Consultants at phanz.co.nz
You can also find Certified Passive House professionals in your area by heading to our members directory and filtering by “Certified Passive House Professionals”

Be part of the change.

Share this:

On 29 November, MBIE released the 2021 update to the building code. The main changes include increasing insulation requirements and changes to Acceptable Solutions and Verification Methods.

However, quietly tucked way in H1/VM1 Energy Efficiency Verification Method is a section that now recognises the Passive House Planning Package (PHPP) as a modelling tool that can be used as a means of compliance.

This is really exciting because although the methods required for compliance with the Building Code still leave plenty to be desired (read out position paper here), PHPP is a reliable and accurate modelling tool when used correctly. Passive House designers and consultants receive training in the use of PHPP as part of their CEPH2 course and some of them offer it as an independent service – see certified Passive House designers and consultants here.

If you want to buy a copy of PHPP, we are a licensed reseller and you can purchase it from our online shop.

Watch this space for a further info and events relating to PHPP!

H1/VM1 Energy Efficiency Verification Method

Share this:

On Thursday 25th November PHINZ hosted a webinar which covered the challenges faced and solutions implemented in consenting the windows for the Wunderbar Passive House project.

Darryl Sang and Alya Abed Ali from Sang Architects and Darryl August and Ian Fong from August Millard talked through the details and shared their learnings.

If you missed the webinar itself or would like to re-run it again you can find the link for the recording and the slides below. We hope you enjoy it. Watch out for more webinars hosted by PHINZ in the near future on both our website in Upcoming Events and on our Facebook page.

Share this:
courtesy of Kāinga Ora

A Kāinga Ora social housing project in Māngere, Auckland has passed pre-construction review and is now on track to become the first central government funded Passive House social housing in Australasia. Construction on the 3 level, 18 unit “Bader Ventura” project is due to start by the end of this year, and to be completed by mid-2023. There are currently also another seven Kāinga Ora Passive House projects in the design phase, all 3 level walk-ups in Auckland. 

PHINZ CEO Amy Tankard paid tribute to Kāinga Ora’s vision in adopting the Passive House standard for this development.

“It’s fantastic that Kāinga Ora is taking the lead in starting to build housing that will not only keep occupants warm, dry and healthy, with minimal power bills, but also takes a big step towards meeting MBIE’s Building for Climate Change proposed 2035 targets. 

Kāinga Ora is the main housing provider in Aotearoa New Zealand, and therefore this commitment has massive implications for the future of building here. Bader Ventura will demonstrate that it is achievable to build to Passive House standard at scale. It will give certainty to suppliers and other Passive House industry professionals, and widen the knowledge base and awareness of Passive House”

Key partners on the project include PHINZ members 

Peddlethorp – Architects

Oculus – Passive House lead and facade engineer

Sustainable Engineering – independent certifier

Congratulations to all who have progressed the project to this point. We will be following with interest!

You can read more here:

New Mangere development promises tiny carbon footprint and power bills :: Kāinga Ora – Homes and Communities (kaingaora.govt.nz)

https://www.stuff.co.nz/life-style/homed/latest/126303137/heating-for-1-a-day-kainga-oras-first-passivedesigned-social-housing-block-is-a-blueprint

Kāinga Ora announces first Passive House development | Architecture Now

Peddlethorp and Kāinga Ora celebrate first Passive House public housing development | Scoop News

Share this:

The SPPHC21 is set for November 25-27th at Auckland’s AUT. Hosted in cooperation with APHA and AUT this year’s theme is Our Common Future with topics including Passive House social housing and intergenerational wellbeing. Registrations are open now – get in quick as numbers are limited and Early Bird rates end August 31st. For more info and registration go to our upcoming events conference page

Share this:

In 2015, the UN set 17 new Sustainable Development Goals (SDGs) to be reached by 2030. The Passive House Standard plays a direct role in achieving many of these global aims for the built environment.

In order to identify how Passive House contributes to the SDGs, the International Passive House Association derived a list of relevant and recurring themes by reviewing the targets and indicators of the individual SDGs, summarised into 8 categories:

  • Health and wellbeing
  • Economic and job creation
  • Social housing and energy poverty
  • Education
  • Resilient and innovative buildings
  • Sustainable consumption and production
  • International cooperation
  • Climate change protection and accountability

Using these categories, 10 applicable SDGs were carefully selected from the original list of 17 where relevant targets or indicators show Passive House meaningfully influencing the particular SDG. These are:

SDG 1 – End poverty in all its forms

SDG 3 – Ensure healthy lives and promote well-being for all

SDG 4 – Ensure inclusive and equitable quality education and promote learning opportunities for all

SDG 7 – Ensure access to affordable, reliable, sustainable, and modern energy for all

SDG 8 – Promote sustainable and inclusive economic growth and productive employment for all

SDG 9 – Build resilient infrastructure, promote inclusive and sustainable industrialisation, and foster innovation

SDG 11 – Make cities and human settlements safe, resilient, inclusive and sustainable

SDG 12 – Ensure sustainable consumption and production patterns

SDG 13 – Take urgent action to combat climate change and its impacts

SDG17 – Strengthen the means of implementation and revitalise the global partnership for sustainable development

Conclusions drawn:  If both the public and the private sector increase their implementation of the Passive House Standard, the results on a larger scale can lead to a substantial reduction of the total building-related carbon emissions, meet development targets including health and wellbeing, climate action, affordable and clean energy, and responsible consumption and production among others.

In a period when policymakers and the private sector are making decisions about the direction their building guidelines and business development will go, it is important to highlight the way the Passive House Standard can lead to better health, social, economic, and environmental outcomes. The SDGs are an ideal backdrop to illustrate where the Passive House Standard fits into global aims.

Please feel free to share the credited graphic above which sets this information out in a clear fashion, and you can read more detail on Passipedia here Passive House and the Sustainable Development Goals (SDGs): Connecting an international building standard with global aims [ ] (passipedia.org)

Share this:

Earth Day 2021 is on April 22nd! Restoring Our Earth is bigger than one solution or one country’s efforts. We must come together as a global community to make changes, and more importantly make them quickly. Recognising the crucial role that maximising the efficiency of the resources we already have is pivotal: EFFICIENCY is our FIRST renewable resource. Find out all about the Passive House Efficiency First Campaign here

#passivehouse #Passivhaus #efficiencyfirst #RestoreOurEarth #EarthDay

Share this:

The international campaign continues, with the launch of the PHINZ #EfficiencyFirst Pamphlet. This is available on our downloads page, and you can also view the pamphlets for other iPHA affiliates here

iPHA

Associação Passivhaus Portugal (PHPT)

Hellenic Passive House Institute

IG Passivhaus Deutschland

New York Passive House (NYPH)

North American Passive House Network (NAPHN)

Passivhaus Austria

Passive House California (PHCa)

Passivhaus Trust

Plataforma Edificación Passivhaus (PEP)

ZEPHIR Italy

Share this: