The gold standard in insulation.
Non-slumping. Unrivalled fit. Recycled and recyclable.
Built to perform for life.
Mammoth Modern Insulation:
Built for healthier New Zealand homes.
Made in New Zealand, Mammoth® Modern Insulation has a comprehensive range of high performing thermal and acoustic 100% polyester insulation products for use in the ceiling, wall and underfloor for the building, construction and residential markets. Safe to handle and easy to install, Mammoth is your preferred polyester insulation solution.
Exciting news - Mammoth turns 25!
We're also celebrating 25 Years of Mammoth Modern Insulation! Happy Anniversary to the entire Mammoth team as we celebrate 25 years of innovation, sustainability and creating healthier homes and buildings across New Zealand.
Since 2001, Mammoth Modern Insulation has proudly helped kiwis create warmer, more comfortable and energy-efficient spaces, while continuing to lead the way with sustainable polyester insulation solutions. This milestone is a celebration of the passionate people behind the brand - our team, customers, partners and supporters who have been part of the journey.
Here’s to 25 years of making a difference, and to an even brighter, healthier and more sustainable future ahead. Read more here on the history of Mammoth and check out our video looking back on the last 25 years.
Why choose Mammoth Modern Insulation?
We have countless reasons - including our extensive product range, our commitment to sustainability for better environments, our zero-waste manufacturing process, our free TakeBack & ReUse recycling programme where we recycle clean offcuts and packaging back into Mammoth insulation.
Creating better environments and sustainability is at the heart of Mammoth. Our NZ-made 100% polyester insulation transforms recycled plastics - including bottles and food containers - into high-performance thermal and acoustic solutions, helping deliver warmer, healthier, and more energy-efficient homes and buildings while reducing environmental impact.
Mammoth is 100% recyclable - using offcuts, end of life products and packaging through our TakeBack & ReUse Programme. Using a zero-waste manufacturing approach, Mammoth supports a circular economy from production - using 65-94% recycled content - through to reuse.
Free from harmful chemicals, it’s non-irritant, and safe to use, Mammoth insulation is also backed by trusted certifications and a 90 year warranty - it’s insulation designed for long-term performance - better for people, buildings, and the planet.Read more here about all the reasons you should choose Mammoth insulation for your next project.
Our products are designed to meet H1 compliance
Mammoth® Modern Insulation has a comprehensive range of thermal and acoustic polyester insulation products for use in the ceilings, walls and under floors for the building, construction and residential markets. Our free H1 modelling and calculation service assists designers, architects and builders show compliance while considering the cost implications for their clients.
Go to our RESOURCE CENTRE to download our brochures, datasheets, installation guides and more.
Ceiling & Roof
Mammoth® ceiling and roof insulation is non-irritant, non-toxic and is warranted not to sag over time. Depending on the roof space, Mammoth has ceiling blankets or skillion sections to suit.
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Walls
High performance, long-lasting, moisture resistant insulation that won't sag, Mammoth® wall insulation is available in sections, blankets and masonry wall sections to help create a warmer, drier homes and buildings.
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Underfloor
Mammoth® underfloor insulation products are available as blankets, sections and carpark panels. Easy to handle and install, Mammoth does not sag, deteriorate, is moisture resistant and won't affect electrical wiring.
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Acoustic
Mammoth® acoustic polyester insulation range includes wall sections and blankets, Bafflestack, Panel Absorber and Duct Liner insulation - perfect for creating quieter environments in homes and commercial buildings.
TakeBack and Recycling for a Circular Economy
“For many years we have had a TakeBack programme where anyone can bring back Mammoth offcuts & packaging to our factory for recycling. While this is great, it is prohibitive to many builders, installers, and clients who work outside of Auckland where our factory is located.
We know that to capture as much of our product as we can, we need to provide easy solutions for clients using Mammoth to do the right thing and recycle it.
For this reason, we have opened up TakeBack drop-off locations in Auckland, Hamilton, Tauranga, New Plymouth, Wellington and Christchurch, with more to follow. For large volumes we will also collect from clients free of charge. We also have our own install network which is a huge advantage as they send back mountains of product weekly for recycling.” Justin Grimshaw, National Sales Manager, Mammoth Insulation.
Where to Buy Mammoth
Find out where to buy Mammoth insulation products in your area. Whether you're wanting to buy for DIY install or get Mammoth insulation professionally installed, we have a nationwide network of suppliers and installers.
Case Studies
Read more case studies here.
