Industry Codes of Practice Links




Available by free download from the NZ Metal Roofing Manufacturers' Inc website:




TORCH-ON MEMBRANE Code of Practice

The Code of practice for Torch-On Membrane Systems for Roofs and Decks published 2008 is available for free download from the Waterproofing Membrane Association website:


View or download from the Ministry's website:





























Become a Member

If you’re in the business of ‘roofing’, then RANZ is the trade organisation for you! 

RANZ membership represents the majority of large, medium and small roofing contracting businesses involved in the installation of roofing and related products & accessories nationwide (Primary Members) and key manufacturers and suppliers to the industry (Associate Members) – encompassing all roofing system types on the New Zealand market.

Principally representing the interests of the contracting industry, through strong membership representation from both the contracting and manufacturing/supply sectors, RANZ is the overall collective voice for the roofing industry as a whole. As the industry watchdog, we’re here to protect the interests and welfare of members and the industry to ensure a more professional, better trained, informed and educated industry.

Offering a wide range of services, business & education resources and membership support both collectively and individually, membership of RANZ will benefit you and your business.

Since formed in 1994 RANZ and the roofing industry through the work of RANZ, has gone from strength to strength.

As a RANZ member, you will gain the benefit of a distinct business advantage with improved profile and credibility of a national brand behind you. Membership stands for quality of standards, skills, service and professionalism.

Ask yourself –

  • Are you sufficiently well informed?
  • Do you have up-to-date knowledge of current legislation and compliance requirements?
  • Do you know what’s ahead for the Roofing Industry and how legislation may impact on you and your business?
  • Do you know roofing has become a ‘specialist trade’ under the Building Act 2004 and licensing of the roofing industry that became mandatory on 1st March 2012?
  • Do you have access to industry specific information and education resources?
  • Do you have access to an industry-wide network support base?
  • Do you have the ability to mix and network with other roofing businesses and suppliers?
  • Do you have somewhere to turn for advice?
  • Have you missed out on a job because you're not a RANZ member?

NO?  Then you should seriously consider joining.

We live in fast moving times

The Roofing Industry is undergoing constant change and needs to quickly adopt and adapt to new technologies and processes to keep ahead and maintain its competitive edge.

In this climate, professional specialist roofing companies need to keep abreast of industry developments, new/amended codes and legislation requirements.  With evolving change to legislation and industry practices, along with heightened consumer expectations, the industry needs to continually enhance and improve its skill base, business practices and workmanship standards.

With the changes ahead for the Roofing Industry and operating a business in a specialist and competitive market, it’s essential to the success of your business that ‘you’ve got your finger on the pulse’. AND that’s where RANZ can help you and you will benefit through membership.

If you’re weighing up the cost of membership, then consider the time it takes you to search out information or seek advice essential to your business. Time is money! Who do you turn to for information and advice and is that time you spend cost effective? Through membership – you will be better informed, receive support & guidance, and have access to information and resource tools that will benefit you and help you run and grow your business more successfully and improve the quality of service to your customers. We’re only a call away and its stress free!

Apply to become a member of RANZ!

 For more information click on Benefits of Membership, Membership Categories and How to Join


  • ROOFLINK - latest issue out now
  • INNOVATION: Cladding on a new car park in Christchurch is a great example of a tinsmith's skill
  • Project Unite Ltd (Hamilton) installs a KingZip roof system on the new Delegat winery near Hastings. 
  • CEO Graham Moor leads a team to Vancouver to explore the RCABC's roof training school. Would a roofing school be possible in New Zealand to address the acute skill shortage? 
  • RANZ has developed a check list for re-roofing. This will assist members when assessing potential re-roof jobs with all aspects of replacing a roof notified on this document for the roofer to use when assessing the work and what will be required.
  • New rules now apply whenever retentions are withheld and many subcontract agreements will need to be modified.
  • Changes to provisional tax and new rules on withholding tax are outlined by Tax Management NZ's Chris Cunniffe.



RANZ Sponsors


New Zealand Steel


Alsynite NZ Limited
Ampelite (NZ) Ltd
DLM Wallace Pumps
Gerard Roofs
Steel & Tube


Aotea Machinery
Ardex New Zealand Ltd
Bremick Pty Ltd NZ
Calder Stewart Roofing
CSR/Monier Roofing
Dupont Protection Solutions
EDL Fasteners Ltd
Fribesco Ltd
Kingspan Insulated Panels
Laminex New Zealand
Maximum Safety NZ Ltd
Metalcraft Roofing
Monkey Toe Group
Pacific Coilcoaters
PSP Translucent Roofing Ltd
Roofing Industries Ltd
Tasman Insulation New Zealand


Nuts & Bolts & Screws Ltd
Stratco NZ Ltd
Ramset Reid NZ
Viking RoofSpec
Wakefield Metals Ltd