Knauf Insulation Product Certifications

GreenTag Level A 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.

 Find out more about GreenStar®

BRANZ Appraisal

BRANZ is an independent and impartial research, testing and consulting organisation that has an in-depth knowledge of the Australian Building Code.

We use BRANZ Appraisals to demonstrate compliance with the Building Code requirement, AS/NZS 4859.1 thermal requirements and to demonstrate that the products are fit for use.

CodeMark Certification

CodeMark™ provides confidence to regulatory authorities and end-users that certified products meet the requirements of the Australian Building Code.

Legislation requires building approval authorities to accept CodeMark™ certificates as evidence of compliance with the Building Code. We have selected CodeMark™ certification to provide compliant support systems that are new to the market.


All glasswool products manufactured by Knauf Insulation are made of non-classified fibres (fibres that are less bio-persistent than every day dust) and are certified by EUCEB. EUCEB, European Certification Board of Mineral Wool Products -, is a voluntary initiative by the mineral wool industry. It is an independent certification authority that guarantees that products are made of fibres, which comply with the exoneration criteria for carcinogenicity (Note Q) of the Regulation (EC) 1272/2008.To help user’s identify the safety of our glasswool fibres the EUCEB logo is displayed on our product packaging and/or labels.

Indoor Air Quality

Eurofins “Indoor Air Comfort” (IAC) product certification is an innovative tool to show compliance of a product with low VOC emissions.

Earthwool® is certified as achieving a Gold Standard – this is the broadest standard available today that meets all existing criteria with regards to Indoor Air Quality.

Non-combustible Certification

Non-combustible is a defined term in the Building Code of Australia (BCA). The compliance of a material to the Building Code of Australia (BCA) non-combustibility definition can be determined by conducting an AS 1530.1 standard combustibility test.

If the material satisfies the criteria outlined in the test method the material is not deemed combustible. Knauf Insulation products have been independently tested in NATA accredited laboratories; giving end users confidence in the standard of the test and procedures.

Declare Recognition

Our entire Glass Mineral Wool product range has been awarded the DECLARE 'Red List Free' label.

Whether you are specifying or installing, DECLARE aims to show you that our Glass Mineral Wool range of products is insulation that you can trust. This is demonstrated in a similar way to that of food nutrition labels. The DECLARE label shows clear and transparent details such as:

  • Where a product comes from,
  • What it's made of,
  • Whether it contains chemicals featured on the DECLARE ‘Red List’. These are substances to avoid because they could be harmful to health and the environment.

To achieve the DECLARE label, we’ve gone through rigorous testing and disclosed the entire composition of our Glass Mineral Wool products down to 0.01%. Our Glass Mineral Wool range is manufactured with up to 80% recycled content and the remaining percentage composed entirely from Red List Free raw materials.

DECLARE also contributes to green building rating systems such as LEED and WELL. This means you can use Knauf Insulation Glass Mineral Wool products to deliver buildings that are proven to be healthy and good for the environment.

Through our participation in the DECLARE label scheme, architects, house builders and installers can verify their own sustainability and health and safety credentials too.


The ILAC Mutual Recognition Arrangement (ILAC MRA) provides significant technical underpinning to the calibration, testing, medical testing and inspection results, provision of proficiency testing programs and production of the reference materials of the accredited conformity assessment bodies that in turn delivers confidence in the acceptance of services and results. Knauf Insulation’s laboratory has demonstrated its technical competence to operate in accordance with MS ISO/IEC 17025:2017 (ISO/IEC 17025:2017), means the laboratory meets both the technical competence requirements and management system requirements that are necessary for it to consistently deliver technically valid test results and calibrations.