Find and access recently published information and resources.
New BRANZ resources and publications
- BRANZ conducted field trials in Rotorua to examine how different building materials corrode and deteriorate in geothermal environments. The results of these trials have been published in a series of 4 fact sheets in the Research Now area:
- Materials sensitive to corrosion - which metals are more sensitive to geothermal corrosion?;
- Distance effects of corrosion - a 50 metre separation might not always be enough to lower atmospheric corrosivity to a safe range;
- Discolouration of wood - shows that wood and wood structures in geothermal areas can quickly discolour and deteriorate; and
- Performance of aluminium-zinc alloy coating - aluminium-zinc alloy coated steel degrades faster in geothermal environments compared to marine environments.
Guideline June 2018
- The June issue of Guideline covers the following practical issues:
- Drilling bearers;
- Timber-framed garage doors;
- Wind speeds;
- Vertical timber shiplap cladding and wind zone.
The effects of humidity on gypsum plasterboard used as lateral load bracing for buildings
- A new study report SR399 has been published and it examines environmental moisture levels which have the potential to reduce the effectiveness of plasterboard as a structural component. This project investigated the relationships between, and the performance of, plasterboard linings as lateral load-resisting elements in buildings.
Changes to Building Code, Standards and legislation
New standards have been published
The following standards have been published by Standards New Zealand:
- AS/NZS2918:2018 - Domestic solid fuel burning appliances - Installation (supersedes AS/NZs2918:2001 as at 29 June 2018).
- AS/NZS1577:2018 - Scaffold decking components (supersedes AS/NZS1577:2013 as at 29 June 2018).
- AS/NZS4020:2018 - Testing of products for use in contact with drinking water (supersedes AS/NZS4020:2005 as at 29 June 2018).
- AS/NZS3500.1:2018 - Plumbing and drainage Part 1 - water services (supersedes AS/NZS3500.1:2015 as at 29 June 2018).
- AS/NZS3500.2:2018 - Plumbing and drainage Part 2 - Sanitary plumbing and drainage (supersedes AS/NZS3500.2:2015 as at 29 June 2018).
- AS/NZS3500.3:2018 - Plumbing and drainage - Part 3: Stormwater drainage (supersedes AS/NZS3500.3:2015 as at 29 June 2018).
Revision to AS/NZS3000
The new edition of the Wiring Rules – AS/NZS 3000:2018 Electrical installations was released late last month. A legitimate version of the standard can be purchased from the Standards New Zealand website. Note that the Electricity (Safety) Regulations will continue to cite the current edition - AS/NZS 3000:2007, including Amendments 1 and 2, until they are amended.
Other news and publications
Guide to altering an existing building
- A new guide has been published by the Ministry of Business, Innovation and Employment (MBIE). The guide covers the issue of altering existing buildings, with a particular focus on fire and accessibility upgrades, managing building alterations, meeting specific requirements, demonstrating and assessing compliance, and provides a useful decision-making framework.
Exemptions from carrying out seismic work
- The Ministry of Business, Innovation and Employment (MBIE) has published a new guide called "Exemptions from carrying out seismic work". The guide covers the process for applying for, granting and revoking exemptions.