9 October 2017 AIRAH: Improving the energy efficiency of residential climate control systems

Newly released standard AS/NZS 5141:2018 Residential heating and cooling systems – Minimum applications and requirements for energy efficiency, performance and comfort criteria Specifies requirements for the design, selection, installation, commissioning and maintenance of residential heating and cooling systems to maximize operating energy efficiency within residential buildings. It also sets requirements to achieve prescribed performance and comfort criteria. This standard includes …

The Four Control Layers – Fundamentals of Building Science

The Building Enclosure and the Four Control Layers   Understanding of the building enclosure and the four control layers that make up the building enclosure is vital to understanding how the building enclosure will perform Enclosure The building enclosure is what separates the inside environment from the outside ‘natural’ environment. This includes everything from the paint on the outside of …

SE Certification Platform Checklist

Sustainable Engineering Ltd. provides client certification resources to help them with their certification process. The attached link to the PDF is a list of all the different entries of the Passive House Certification Platform to enable you to go through and just check off and make sure you’ve made each of these entries to make the certification process easier and …

Calling All Passive House Builders

I’m helping to set up a session of hands on builders to each speak for 5 minutes at the next Passive House Conference in Wellington (9th and 10th of February). The concept is to have some real hands on discussion from folks actually building Certified Passive Houses rather than all the talks being from design folks. You would all be speaking together …

14 June 2018 BRANZ Transition to Low Carbon Built Environment by 2050

I was a bit disappointed reading this brief workshop report as the conclusions are very cautious. It started strong by reviewed some epic keynote points like ice free summers at the North Pole by 2030 (12 years away by my math) and the need for negative carbon emissions to stay below 2 degrees increase. Then went on to how industry …

06 September 2018 David Hargreaves argues that what is missing from the Government’s Healthy Homes initiative is a long-term plan to modernise all of New Zealand’s housing stock

This article is great. The author actually gets the obvious limitations built into this government act. Even if NZ chose the top option of all those offered we wouldn’t have guaranteed warm healthy homes. They would be better but not much better … unless someone pays the tenants (large) heating bill. One issue I think is missing is that new …

04 September 2018 SunLive: Healthy Homes Proposals Made Public

I’m glad to see that this is finally out for public comment. Although this article focuses on Rental Housing I see these issues with owner occupied and brand new housing as well; And yes these are new homes built to meet NZ Building Code. The high performance building industry needs to comment as a whole on what will actually fix …