We put sustainability at the heart of everything we do.

Environmental Statement

Earthwool® insulation is a high performance product with environmental and sustainability credentials. Earthwool® insulation is manufactured using the latest state-of-the-art technology, industry leading innovation and certified manufacturing processes to deliver one of the most sustainable and environmentally friendly glasswool products available in Australia.


Environmental Product Declarations (EPD)

Earthwool® insulation supports environmental claims with market leading Environmental Product Declarations (EPDs). The EPDs supporting Earthwool® insulation are one of the most comprehensive evaluations of any insulation product in Australia. The five separate, independently certified EPDs provide clarity and transparency about the life-cycle and environmental impact, a declaration making Knauf Insulation market leaders in product declaration.

CodeMark™ Certification

Earthwool® insulation also maintains CodeMark™ certification. This is the highest level of Building Code compliance in Australia. The Australia Building Code requires insulation to have 50 years durability. The CodeMark™ certification is an independent certification that supports the performance and durability of the products for at least 50 years.

Eurofins Gold Certification

Earthwool® insulation is supported by Eurofins Indoor Air Comfort Gold as an “outstanding material” according to VOC and Indoor Air Quality Emissions certification.

The ECOSE® Technology that is used to manufacture our products replaces the phenol formaldehyde that is used by other Australian manufacturers. Phenol formaldehyde is a known carcinogen and even low levels are considered unacceptable by leading air quality certification organisations. This places Earthwool® insulation in a unique position and makes it impossible for our competitors to currently match this level of certification.

GreenTag Certification

Earthwool® insulation is supported by GreenTag Level A certification. GreenTag is one of the leading independent eco certification organisations. Not only does it demonstrate Earthwool® insulation's environmental credentials, it also helps achieve Green Star building certification.

EUCEB Certification

Earthwool® is manufactured using EUCEB certified glasswool. Products bearing the EUCEB trademark are continually monitored and independently classified as being bio-soluble. Specifiers, installers, building owners and the public can have complete confidence in glasswool products that carry the EUCEB trademark.

Recycled Raw Material

Earthwool® insulation is manufactured using up to 80% recycled glass that is made up of post-consumer glass bottles rather than plate glass from the window industry. This process removes glass bottles from landfill, turning them into high performance, energy saving Earthwool® insulation products.

Zero Waste to Landfill

The plants that manufacture Earthwool® wall and ceiling insulation send zero waste to landfill. This achievement marks a significant milestone in Knauf Insulation's sustainability journey, in which they are constantly developing their products and processes to contribute towards greener and more energy efficient environments.

Certification for Earthwool® insulation

Manufacturer Certification


Discover the sustainability achievements the Knauf Insulation Group made in 2023