Knauf Earth Wool Insulation / Glass Wool

About Knauf Earth Wool Insulation

The Earthwool/glasswool insulation range of products doesn’t look or feel like any insulation you’ve ever experienced. The natural brown colour represents a level of sustainability never before achieved with Glasswool in New Zealand. The Earthwool® glass wool insulation segments and rolls, and can be used in both walls and ceilings applications.

Earthwool glasswool insulation is rot-proof, odorless, non-hygroscopic, does not sustain vermin, and will not encourage the growth of fungi, mould, or bacteria. It is chemically neutral, does not contain impurities, and comes with a 50-year warranty.

Knauf manufactures a wide range of glass and rock mineral wool products for a wide variety of applications.



  • Renewable materials
    The super-soft feel of Earthwool glasswool insulation comes from a revolutionary, patented binder based on rapidly renewable materials.
  • Absorbs sound
    Earthwool glasswool insulation will absorb sound transfer between rooms and floors.
  • ECOSE Technology – no added formaldehyde
    Earthwool glasswool insulation made with ECOSE Technology benefits from a binder which has no added formaldehyde and is based on renewable, bio-based materials instead of traditional petro-based chemicals.
  • Indoor air comfort
    Earthwool glasswool is certified by Eurofins as an outstanding materials according to the VOC (Volatile Organic Compounds) Indoor Air Quality emissions regulations.
  • Non-combustible
    Earthwool glasswool insulation comes with inherent fire performance and will not catch fire.
  • German innovation – 50 year warranty
    The quality of manufacture of Earthwool glasswool is so good that it offers a full 50 year warranty.
  • Sustainable – made using recycled glass
    Earthwool glasswool insulation is made using recycled glass and sand making it a great choice for those who are environmentally conscious.
Knauf Earthwool / Glasswool Insulation

Product Range