Healthy Home Registryby Contessi Build
Home / Insulation / Knauf Earthwool glasswool batts
Checked September 2026

Knauf Earthwool glasswool batts

By Knauf Insulation · Insulation

Why it's on the list

Glasswool made with up to 80% recycled glass and a plant-based ECOSE binder instead of the formaldehyde binders in old-style glasswool. Declare Red List Free and GreenTag certified. The easy-to-get healthy upgrade when budget rules out natural fibre.

Watch-outs

Still glass fibre: wear a mask and gloves when installing, and seal the ceiling and walls so fibres stay out of the living space.

Read more

More insulation

See all →

STEICO FLEX wood fibre batts

Semi-rigid wood fibre batts for walls, ceilings and floors. Vapour open, so they let a wall dry instead of trapping moisture, and they're dense enough not to slump in the frame. Passive House certified, non-irritating to handle and recyclable.

Autex GreenStuf polyester insulation

Thermally bonded polyester with up to 85% recycled fibre and no binders or glues. Non-irritant, so no itchy fibres in the roof space or the house, and low VOC. Good Environmental Choice Australia certified.