Why Earthwool® glasswool?

German innovation - 50 Year Warranty

Earthwool® glasswool insulation is so good that we offer a full 50 year warranty. Check your pack for warranty information.

Absorbs Sound

Earthwool® glasswool insulation will absorb sound transfer between rooms and floors.

BRANZ Appraised

Earthwool® glasswool is BRANZ appraised to ensure compliance with the building code, AS/NZS 4859.

More Insulation Per Pack - Reduces Handling

Unique compression packaging means you get up to 55% more insulation per pack and more insulation per load.

Soft To Handle - Easier To Install

The super-soft feel of Earthwool® glasswool insulation comes from a revolutionary, patented binder based on rapidly renewable materials.

ECOSE® Technology

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.

Made Using Recycled Glass

Earthwool® glasswool is made using up to 80% recycled glass and sand making it a great choice for environmentally conscious customers.

No Added Formaldehyde

Earthwool® glasswool insulation with ECOSE® Technology has no added formaldehyde.

Natural Colour

Earthwool® glasswool insulation contains no added bleaches, dyes or artifical colours. The earthy brown colour just comes naturally.


Earthwool® glasswool insulation comes with inherent fire performance and will not catch fire.