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COVID-19 Update to Customers

Thank you to all our customers who have shown such care for our community and team as we have rolled out new measures to comply with physical distancing guidelines. We are doing everything we can to protect the safety of our customers and our team.

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  • Excellent thermal and acoustic performance
  • Super-soft glasswool
  • No added formaldehyde
  • Non-combustible
  • Compression packaging - more product in each pack

Earthwool® glasswool insulation: ceiling batt R-4.1 provides high performance with high energy saving properties to create a comfortable environment in your home. Earthwool® glasswool ceiling insulation is super-soft and easy to install. It is made using up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde. As well as providing a very good result, this product is extremely durable and comes with a 50-year warranty, so will stand the test of time.

Earthwool® glasswool insulation is a high performance product with environmental and sustainability credentials. Earthwool® glasswool 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 New Zealand.

Earthwool® glasswool 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® glasswool insulation products. The ECOSE® Technology binder that is used to manufacture Earthwool® glasswool insulation replaces the phenol formaldehyde that is used by other glasswool manufacturers.

As a result of using a binder with no added formaldehyde, Earthwool® glasswool insulation is supported by Eurofins Indoor Air Comfort Gold as an “outstanding material” according to VOC and Indoor Air Quality Emissions certification.

50 Year Warranty

We will gladly assist with returns and exchanges of this product in accordance with our returns and exchanges policy

Returns policy

Shop wherever you are, whenever you want.

  • Buy products online from our wide range
  • Click & Collect your purchase in-store or we'll deliver it to you

Visit our Shop Online page to learn more.