Updating BRANZ House insulation guide
BRANZ is currently updating the House insulation guide to align with the new requirements of the 5th edition of Building Code clause H1 Energy efficiency.
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Building Code changes 2021
By David Hindley – 1 February 2022, Build 188
MBIE recently released energy efficiency changes to the Building Code to help make new homes and buildings warmer, drier and healthier. These include increased minimum insulation requirements for roofs, windows and floors.
Keeping in character
By Bruce Sedcole – 1 February 2022, Build 188
In Build 186 Houses ripe for renovation, we talked about renovating and refurbishing New Zealand character homes. Now, here is a closer look at some of the common tasks you may have to address.
Towards zero-carbon construction
By Dr Casimir MacGregor – 1 February 2022, Build 188, Feature article
BRANZ’s Transition to a zero-carbon built environment programme will continue forging partnerships in 2022 to advance knowledge and help deliver the low-carbon buildings that climate change demands.
Corrosion rates in vented roof cavities
By Stephan Rupp – 1 December 2021, Build 187
BRANZ research has provided reassuring results for those wanting to add passive ventilation in roof cavities to counter condensation. Corrosion of metal fixings inside the roof space remains low, even in extreme marine environments.
Reducing noise from heat pumps
By Alide Elkink – 1 December 2021, Build 187
Noisy heat pump outdoor units can rattle the neighbours, especially for those living in higher-density housing. There are, however, some straightforward steps to minimise unwelcome sounds.
Industry undergoes change
By Bruce Duggan – 1 October 2021, Build 186
This fourth part of a series on the history of the Licensed Building Practitioners Scheme looks at some of the changes implemented in the building industry and the impacts these had.
SIPs for faster construction
By Anna Walsh, David Carradine – 1 October 2021, Build 186, Feature article
Building systems that include higher levels of prefabrication and off-site manufacture are potential solutions to New Zealand’s urgent housing need. Current research will give a better overall understanding of the performance of sips in New Zealand.
Airtightness and ventilation
By Stephen McNeil – 1 August 2021, Build 185, Feature article
As we push for higher performance from our houses, expectations for airtightness and ventilation are changing rapidly. Some changes will be needed in design to improve airtightness, and mechanical ventilation is likely to soon be the norm.
BRANZ on H1 proposal
By Roman Jaques, Stephen McNeil, Gleb Speranski – 1 August 2021, Build 185, Feature article
Recently, BRANZ responded to MBIE’s consultation document Building Code update 2021. This article provides an overview of the BRANZ response to Proposal 1 Energy efficiency for housing and small buildings.
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