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Why choose to use Knauf Earthwool?

  • Low itch and low dust
  • Easy to cut with a sharp knife
  • Made from recycled glass
  • Compression packed means more m2 per bag
  • No added formaldehyde
  • Odourless and rot proof
  • Pre-cut to fit most Aussie homes

Why buy Earthwool Glasswool Insulation from us?

Pricewise Insulation is one of New Zealand’s largest online resellers of Earth wool Insulation. We sell huge volumes of Earthwool to commercial builders, owner builders and do-it-yourself renovators. Find a better price elsewhere? We will match it on an identical or comparable product!


Discounts on our Best Sellers

Shop online for our best selling Knauf Earthwool products and order them at discounted prices! Available in a complete range of R-values for external walls, internal walls, ceiling and underfloor areas. Call 0800 697 742 to place a phone order.

Need insulation? Think Earthwool Glasswool

In New Zealand we are spoiled for options when it comes to insulation brands to pick from. Knauf Earthwool is one of the most modern brands on the market, and is the only major insulation brand which is not manufactured locally. Earth wool is in fact made all over the world, and the New Zealand insulation is sourced directly from England. It looks and feels different to other brands. In fact, many customers who are using this superb product for the first time can’t believe that it’s actually made from glasswool. Don’t take our word for it – drop by one of our warehouse facilities and check it out for yourself.

Earthwool uses renewable materials with technological advances

Knauf Insulation has invested heavily in new “ECOSE” technology to bring the itch factor, which for decades has been synonymous with glasswool, to an unprecedented new low. Like many types of glasswool, Knauf Earthwool is manufactured using recycled glass bottles and has been ranked even more environmentally friendly than real sheep’s wool, according to the U.K’s Green Guide for Specification. The product benefits from a unique binder which includes zero formaldehyde and is founded on renewable bio-based materials instead of old-fashioned petroleum-based chemicals.

Knauf Earthwool – Distinctive new Look and Feel

Earthwool insulation is a natural shade of earthy brown, and has no added dyes, bleaches or fake colours. Furthermore it is also less dusty and has a much softer and friendlier feel. As there is no formaldehyde or phenol used in the manufacturing process for Knauf Earthwool it improves the indoor air quality of buildings where these products are installed (compared to conventional glasswool products). One of the secrets behind the absence of itch is the longer strands of insulation. The longer the strands, the fewer strands there are – and less strands of glasswool means fewer of those minute, protruding ends which are the cause of the well known ‘itch’ you may have experienced on the inside of your wrists when working with inferior brands of glasswool insulation.

Compressed for ease of freight and storage

Don’t be fooled by the size of a bag of Knauf Earthwool – a single bag of R1.5/580mm will cover over 30m2 of wall area, which is almost double other brands of insulation. The super-compression factor does come with one warning – you’ll need to take extra care when carrying or transporting the bags, as an accidental slit along the bag will see the earthy coloured segments inside making their break for freedom, and you won’t get them back into the damaged bag without a struggle and lots of strong tape!

General Info about Knauf and Earthwool

German company Knauf manufactures a wide range of glass and rock mineral wool products for a wide variety of applications, and has numerous manufacturing facilities all over the world. Earthwool® insulation segments and rolls are extremely versatile and can be used in applications from wall and ceiling insulation to HVAC and certain industrial applications.

It’s not hard for us to recommend Knauf Earthwool – it is after all low-itch, rot-proof, odourless, non-hygroscopic, does not sustain rats, mice or other unwelcome visitors, and won’t encourage the proliferation of fungi or mould. It is chemically neutral, does not contain impurities and comes with a reassuring 50 year warranty.