ISO 14001 is an internationally recognised environmental management standard focused on improving environmental performance and operational processes.

Can COLORSTEEL® contribute to Homestar projects?

The colours shown on our website represent the primary COLORSTEEL® range. Additional colours and custom colour options are also available for selected projects. Contact our specifications team to learn more.

Can COLORSTEEL® contribute to Green Star projects?

Yes. COLORSTEEL® products can support Homestar requirements through recognised environmental certifications and material transparency documentation.

Sustainability | COLORSTEEL® New Zealand Steel

Q: Where can I find trade tools and resources?

The COLORSTEEL® (Trade) section includes specifications, installation guides, technical resources, bulletins and downloadable tools for installers, specifiers and rollformers.

Q: What is the worldsteel Climate Action Programme?

The worldsteel Climate Action Programme recognises steel producers participating in emissions reporting and climate performance benchmarking initiatives.

FAQs

Find answers to common questions about sustainability certifications, environmental performance and compliance documentation.

What are MAT-1, MAT-8 and Credit 21?

MAT-1 is the name of the Sustainable Materials credit under the Homestar v4 rating tool. MAT-8 is the name of the Steel Credit under the Green Star v3 rating tool. Credit 21 is the number of the Sustainable Products credit under the Green Star Design and As Built NZv1.0 rating tool.

What are Categories, Credits, Points and Criteria?

The rating tools are organised into Categories, addressing key themes of sustainable building. Within each category, are Credits that address specific areas within that category. Each Credit has a specified number of Points available, providing the Credit Criteria are met.

How many points are available under Green Star and Homestar?

The Homestar v4 rating tool has a total of 120 points available within the tool, as well as 10 innovation points.
The Green Star v3 rating tool has a total of 100 points available within the tool, as well as 5 innovation points.
The Green Star Design and As Built NZv1.0 rating tool has a total of 100 points available within the tool, as well as 10 innovation points.

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Where can I find trade tools and resources?

The COLORSTEEL® Trade section includes specifications, installation guides, technical resources, bulletins and downloadable tools for installers, specifiers and rollformers.

Where can I get help with sustainability specifications?

Our team can assist with sustainability documentation, certifications and specification support for residential and commercial projects.

Why does durability matter in sustainability?

Long-lasting materials can help reduce replacement frequency, maintenance requirements and lifecycle environmental impacts over time.

What sustainability certifications are available for COLORSTEEL®?

Available documentation includes Environmental Product Declarations (EPDs), Environmental Choice NZ certification and supporting Green Star and Homestar information.

Where can I download sustainability documentation?

Environmental certifications, EPDs and sustainability documentation are available in the Downloads section.

Are COLORSTEEL® products made in New Zealand?

Yes. COLORSTEEL® is proudly made in New Zealand by New Zealand Steel. The steel itself is made in Glenbrook, South Auckland. COLORSTEEL® is then manufactured out of that steel, and sent to local rollformers across the country.

Is COLORSTEEL® recyclable?

Yes. Steel is 100% recyclable and can be reused again and again without loss of quality.

What is the Worldsteel Climate Action Programme?

World Steel Association, often abbreviated as worldsteel, is the international trade body for the iron and steel industry. The Worldsteel Climate Action Recognition Programme recognises steel producers that have fulfilled their commitment to participate in the worldsteel CO2 emissions data collection programme.

In 2008, Climate Action was launched, under which companies report data on site, or at company level, for CO2 emissions. A participating company or site receives a report showing the process route average emission data and range to which it can compare itself. The data collection programme is at the core of the steel industry's global steel sectoral approach to climate change. Based on a common methodology, definitions and agreed boundaries, the data collection programme enables individual steel plants to compare themselves against both average and best performance and identify its scope for improvement.

Participation is open to all steel-producing sites or companies, worldsteel members and non-members alike.

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What is ISO 14001?

ISO 14001 is a standard that defines criteria for an EMS. It does not state requirements for environmental performance but rather maps out a framework that a company or organization can follow to set up an effective EMS. It can be used by any organization that wants to improve resource efficiency, reduce waste, and reduce costs. Using ISO 14001 can provide assurance to company management, employees and external stakeholders, that the organisation’s environmental impact is being measured and improved.

What is Environmental Choice New Zealand?

Environmental Choice New Zealand (ECNZ) is the country’s official environmental certification programme, recognising products with reduced environmental impact. The ECNZ ecolabel offers strong proof of a businesses/products environmental performance.

How do points result in a ‘Star Rating’ under Green Star and Homestar?

The total number of available points, and the points required to gain a particular star level, vary between the rating tools, as shown below:

Homestar Award Levels

10 Star 100+ points

9 Star 90-99 points

8 Star 80-89 points

7 Star 70-79 points

6 Star 60-69 points

No Rating 0-59 points

Green Star Award Levels

Green Star 6 (World Leading) 75+ points

Green Star 5 (NZ Excellence) 60-74 points

Green Star 4 (NZ Best Practice) 45-59 points

No Rating 0-45 points

What is Homestar and Green Star?

Homestar is an independent rating tool that certifies the health, efficiency and sustainability of New Zealand homes.

Green Star is a rating tool to support stakeholders in the property and construction sectors to design, construct and operate projects in a more sustainable, efficient and productive way. It provides tenants with a trusted mark of independent verification to support decision-making. Green Star is for commercial building projects.

There are two versions of Green Star currently applicable in New Zealand:

Green Star v3 is available for projects registered up to the end of October 2019
Green Star Design and As Built NZv1.0 must be used for any project registered after October 2019

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What is an EPD?

An Environmental Product Declaration (EPD) is an independently verified document that communicates the environmental impact of a product across its lifecycle.

Sustainability

COLORSTEEL® is designed for long-term performance in New Zealand conditions, helping create durable buildings that stand the test of time.

12%

reduction in Scope 1 & 2 greenhouse gas emissions by 2030

98%

of the water we use is recycled from our own processes

88%

of New Zealand Steel’s site electricity comes from renewable sources, plus on-site energy recovery from off-gases and waste heat from iron-making

Certifications

Eco Choice Aotearoa

Worldsteel Climate Action

ISO 14001

Downloads

COLORSTEEL MAXAM® 0.4mm

COLORSTEEL MAXAM® 0.55mm

COLORSTEEL MAXAM® 0.4mm (EAF)

COLORSTEEL MAXAM® 0.55mm (EAF)

COLORSTEEL ALTIMATE® (EAF)

FAQs

Find answers to common questions about sustainability certifications, environmental performance and compliance documentation.

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