Mammoth masonry wall insulation products are designed to support the thermal performance of masonry/concrete walls.

Made of 100% polyester, Mammoth® masonry wall insulation is 45mm thick to fit between masonry battens and are available in two forms: a R1.0 wall blanket and R1.3 wall sections.

Mammoth products contain recycled polyester fibres. Mammoth masonry wall insulation uses up to 7,800 recycled plastic bottles per 100sqm*.

For high performance self-supporting polyester wall sections, we have Mammoth Wall Sections or for walls requiring roll form insulation, there is the option of our Mammoth Wall Blanket.

  • Category
    Wall Insulation
  • Range
    Walls Insulation
  • Brand
  • Warranty
    50 years
  • High-performance semi-rigid 100% polyester airlay sections or carded blanket. 
  • 45mm thick sections to fit between masonry battens. 
  • Mammoth products contain recycled polyester fibres. Mammoth masonry insulation uses up to 7,800 recycled plastic bottles per 100sqm*. 
  • Heat bonded - no glues or binders that can break down so it won't sag or settle over time. 
  • Mammoth sections come in pre-cut sections of varying widths and lengths. 
  • Sections can easily be cut using wide blade craft knives or specialized insulation saws. 
  • Self-supporting for a smooth friction fit without creases, folds, or tucks. 
  • Also absorbs noise to create a quieter environment. 
  • Unaffected by moisture, Mammoth insulation will continue to perform once dried out. 
  • Mammoth is moisture, mould, and mildew resistant. 
  • Red List Free - no formaldehyde or pesticides added. 
  • Safe, non-itch, odourless and non-toxic - no precautions are required for handling the product. 
  • Mammoth masonry insulation is BRANZ tested & masonry wall sections are Environmental Choice certified. 
  • NZ Green Building Council approved. 
  • Mammoth masonry insulation has an Ozone Depleting Potential (ODP) of zero. 
  • Mammoth products are made in a zero waste production process and are fully recyclable. 
  • Recycling plastic protects the environment by keeping the carbon content locked up in the polyester fibre and reducing landfill waste. 
  • Long lasting, Mammoth insulation is performance warranted for 50 years (T&Cs apply). 
  • Manufactured by InZone Industries Ltd, NZ's first and only Toitū net carbonzero certified insulation manufacturing organization. 
  • * Calculations are based on 500ml PET Bottles (16.2g).
SKU: masonry-2
Mammoth Insulation
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About the

Mammoth® Modern Insulation is manufactured by InZone Industries Limited - a New Zealand owned and operated manufacturer of polyester thermal and acoustic insulation - supplying the local New Zealand market and export markets with a range of insulation products for the building, construction and residential markets.

Mammoth polyester insulation products help create warmer, healthier, more energy efficient environments which helps to improve people’s health in addition to reducing carbon emissions.

Our thermal and acoustic insulation products are designed to maximise thermal performance across the construction system and products independently tested proved to outperform their product R-values.

With manufacturing facilities in the North Island, Mammoth's thermal and acoustic insulation is made from 100% polyester and uses up to 15,600 recycled plastic bottles per 100 sqm*.

Made by NZ's first and only Toitū net carbonzero certified insulation manufacturing company, everything from packaging to product is recyclable at the end of its life.

Our business is underpinned by a philosophy of creating better environments which extends to more than just the product we manufacture. Read more here about our commitment to our carboNZero manufacturing ethics, our sustainability practices and our technical excellence.

Our Take-back Program

Talking about taking product back and making it our client’s problem to get it back to us is one thing, actively putting bins around the country and making it easier for our clients to recycle their offcuts is another.

We don’t believe it is good enough to say, get it back to our factory and we will recycle the product. We believe putting our hand up and sharing that responsibility is a necessity. That’s why we are proud to announce we have started the process of putting Mammoth recycling bins around the country. The first two locations, beyond our factory in Auckland, are Hamilton and Wellington. We encourage all Mammoth Insulation users to bring their clean offcuts back to these locations so we can avoid landfill and create a circular economy by recycling them.