Green Star
Green Building Compliance

Making Australian Buildings More Sustainable


Knauf Insulation glasswool insulation solutions manufactured using ECOSE® Technology are high performance products with environmental and sustainability credentials. Our leading levels of sustainability certification is demonstrated by Knauf Insulation glasswool insulation being the only glasswool product in Australia to achieve Global GreenTag™ GreenRate Level A. This level of certification assists designers in accruing additional credit points for not only the attribution to increased building performance, but also the sustainability level of the product selected.

Why Choose Knauf Insulation?

By selecting one of our glasswool insulation brands, designers can attribute points to the following GreenStar® categories:

  • ⦿ GreenStar® ‘Design and As Built v1.3’ and ‘Interiors v1.3’ Rating Tools Credits:
    • ○ Sustainable Products, Life Cycle Assessment
  • ⦿ GreenStar® ‘Performance v1.2’ Rating Tool Credit:
    • ○ Procurement and Purchasing: Refurbishment Materials

Our Sustainability Credentials


GreenStar® is the most widely used sustainability rating tool in Australia and provides a holistic rating system for buildings, fit outs and communities. The rating system is based on six stars:



GreenStar® assesses the sustainability attributes of a project through impact categories. Each category groups a number of issues related to a certain sustainability impact; these are known as ‘credits’.

A credit addresses an initiative that improves or has the potential to improve a project’s sustainability performance; each of these initiatives is a criterion. Credits are weighted in relation to each other by varying the number of points available. Each credit defines a clear outcome that a project must meet. Where the outcome is verified to have been met, a project will be rewarded with the relevant available points.

Once all credits are assessed, the total number of points achieved is compared against the available points in the rating tool and a certified rating is awarded.

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Knauf Insulation brands included in the Global GreenTag™ certification

It's easy to see why our Earthwool® range is a popular choice amongst DIYers and installers with products designed specifically for roofs, ceilings, walls and under floors.

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Supafil® CarbonPlus is especially designed for installation into existing double brick masonry cavities by an Approved Installer.

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SprayWool Thermal and Acoustic is a non-combustible spray on insulation solution used for increasing the thermal and acoustic performance of concrete soffit applications, either behind a ceiling lining or left exposed for high Noise Reduction Coefficient (NRC) properties.

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What is Global GreenTag™ certification?

GreenTag is a third party, green building product rating and certification system putting certified products within the top end of the green product market.

The certification makes it easy for designers and building owners to gain rewards under GreenStar® credits system. Earthwool® is the first and only glasswool insulation in Australia and New Zealand to have GreenRate Level A certification.

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More information:


Learn more about our sustainability credentials here.

Learn more about our product certification here.


Learn more about non-combustible solutions here.