NZ’s latest sustainable housing project only costs $1/day to heat

In its latest housing project in Auckland, New Zealand, a new standard of sustainable homes is being developed.

According to Kāinga Ora these new-build apartments are projected to only cost residents around $1 per day to heat – representing a cost saving of approximately 85%.


Using smart design, high-performance construction materials and a ventilation system with heat recovery, these homes are able to maintain a steady temperature and reduce moisture in the indoor environment, leading to drier and healthier homes.

Kingspan is working with Peddle Thorp, the lead Architects on the project, who have specified Kingspan’s Kooltherm K17 insulated plasterboard as a key component of the building project.

The K17 product was selected due to its energy efficiency, ability to minimise condensation risks by eliminating thermal bridging, and ease of use in construction.

With K17, the insulation layer is not “bridged” by a higher thermal conductivity material, therefore, K17 can be fixed directly to the wall surface in a 1-step insulation and dry-lining process and only pone installed is required. Because of the thinner wall materials, this creates larger living spaces, even with the K17 additional layer (which acts like a vapour control layer).

One of the key drivers of the specification is to achieve the Passive House standard – which is recognised internationally as best practice for low energy use and health performance – especially in social housing. Kooltherm K17 helps to achieve these standards through its 3-in-1 usability for insulation, dry-lining and vapour control.

Scott Gibson, Kingspan Insulation managing director, says “this is a really exciting project to be involved in – as it is Australasia’s first Passive House social housing project funded by central Government. This could set the standard for low energy-consuming, environmentally friendly, housing construction for years to come”.

Via Kingspan

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