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    Supa-Fill Machine Blown Wool Insulation

    Supa-Fill is a natural wool fibre lofted insulation that has been treated and processed to provide a cost effective efficient insulation.


    Supa-Fill can be installed in ceilings of homes or offices.


    Supa-Fill is installed by only approved installers using a machine blowing technique that provides a full blanket effect.


    Machine installation takes advantage of wools natural bonding properties ensuring that the product maintains its loft and will not shift. This provides a superior and long lasting thermal insulating performance.

    Natural Wool Products operates a strict code of practice which monitors and ensures product is installed correctly by qualified Installers. This will provide a guaranteed thermal insulation rating.


    Supa-Fill is sourced from a combnination of scoured wool and wools recycled from the spinners of yarn for the carpet making industry.


    Supa-Fill, Our machine blown natural wool fibre contains carpet wool types which means that the product in your ceiling is basicaly the same as the carpet you lay on the floor throughout your home or office. The only difference is that it has not been woven.


    Unlike synthetic products, the wool fibre is hollow which enables air to be trapped naturally. The unique characteristics of the fibre ensure that loft is retained resulting in an extended useful life of the material.


    Supa-Fill is installed at a range of standard thermal values ranging from R3.2 to R5.0, however vertually any thermal value can be calibrated and installed.


    Normally values of R3.2, R3.6 or R4.0 are installed in the North Island with R3.6, R4.0 or R5.0 installed in the South Island.


    Batting  &  Blanket Wool Insulation

    Insulation material for walls and ceilings is available in either wool blanket or batting form. 

    It is available for installation into the walls and ceilings of buildings.

    Material is safe and healthy and requires no protective clothing for handling or installing.



    Benefits of Wool

    Wool is a Natural Choice

    Wool is unique in its insulation properties and brings its proven characteristics into our residential and business environments.  Wool is excellent in providing healthy, warm, dry and comfortable living environments. Wool has been proven through its years of use in fabrics, apparel, bedding and carpets.  It is a natural fibre used universally for personal comfort and warmth. 

    It is only natural that this same product be used in the form of home insulation.  Wool fibre has natural interlocking scales on its outer surface.  This ensures strength, resilience and pliability which enables it to bend without breaking and return to hold its form and shape.

    We wear it,  walk on it,  babies sleep in it,  so why not insulate with it ?

    Wool Breathes

    Wool is Not Inert

    Wool is the only insulation material that is not inert.  Wool fibre breathes and reacts to climatic change which effectively allows your home and office to breathe.  Wool is an extremely effective insulator when moisture is present within the environment. This is a continual occurrence due to the ever changing level of humidity within the atmosphere.  Insulation products without absorption ability can be adversely effected by humidity.  The presence of moisture is evidenced by water, condensation, mould and mildew within buildings. 

    Wool is a Hygroscopic Insulator

    This means that wool can absorb moisture without becoming wet to touch.  Wools natural insulation ability is not affected by moisture because of its built in natural crimp.  As the fibres naturally repel each other, an amount of air is retained which provides an insulation effect. 

    The fibre has the capability of absorbing up to 30% of its own weight in moisture, before it becomes wet to touch. 

    Wool in essence,  provides a form of natural air-conditioning! 

    Wool is Healthy

    Warm and dry environments are essential in providing healthy living conditions.  Wool has a natural ability to achieve this by absorbing and desorbing moisture.  Through this characteristic, benefits can be obtained by sufferers of a wide range of health conditions such as asthmatic and other respiratory ailments.

    Unlike some finer micron synthetic materials, the body does not absorb wool fibre through inhalation.  Wool used for insulation is on average in the 25 – 40 micron range. Synthetic materials used in other forms of insulation products can be as low as 6 micron. 

    Wool is a natural  protein substance.  The protein from wool fibre is currently being used in the cosmetic and pharmaceutical industries.  This would obviously not occur if there was an element of risk or harmful effect.

    Wool is Non Allergic and Safe to Handle

    Wool being a natural fibre contains no irritants, is non toxic and absolutely safe to handle.  The fibre contains no dangerous dust and does not require breathing protection.  No protective gloves or clothing are required in handling or installing.

    Wool Absorbs Gases & Fumes

    Wool based products reduce the risk to health and environment as a result of its ability to absorb gases and fumes such as formaldehydes and dioxides that are present in construction and finishing materials associated with building.

    Wool can absorb many times more formaldahyde than is found in the average home.

    Wool is Very Low in Conductivity

    Natural wool has very low conductivity which means that it is very difficult for heat to transfer through the fibre.  Experience shows that wool does not settle or compact over time as some synthetic products do, thereby effecting thermal effectiveness.

    Wool is Fire Resistant

    Wool is naturally fire resistant and will not burn but melt away from its ignition source and extinguish.  Wool has a higher fire resistance than cellulose and cellular plastic insulation. Wool used in insulation has been tested disclosing an ignitability and spread of flame index of zero and smoke developed index of 5.

    Wool is Environmentally Friendly

    We live in a country proud of its ecological approach towards environmental management.  Wool is a natural product that emits no harmful chemicals that pollute our atmosphere, soil or water ways. Wool is safe to our environment and is a renewable resource.

    Wool is Low in Embodied Energy

    Embodied energy is a measurement of the amount of energy required in manufacture.  Some insulation materials require a tremendous amount of energy to manufacture a product designed to reduce domestic energy consumption.  The question can be asked  if some products, during an economic lifetime, will save an amount of energy greater than that utilised in their manufacture.

    Wool insulation products require a minimal amount of energy compared to the manufacture of some synthetic products.  With the necessity to conserve energy resources within New Zealand, embodied energy is important to everyone.  Wool used in insulation is a by-product from the manufacturing sector of the wool industry. This in turn illiminates waste and provides a positive impact  on the environment.



  • Thermally bonded with no chemical additives

    Polyester  insulation products are made from 100% polyester fibre, bonded using heat instead of traditional chemical binders. Polyester is naturally resistant to fire, moisture, vermin, insects, mould and bacteria, eliminating the need for any chemical additives.

    Our polyester insulation materials are non-toxic, non-irritating, non-allergenic and safe for anyone coming into contact with them.   And that means no nasty itching and scratching and no ongoing health concerns for building occupiers.

    Eco-friendly manufacture and recycling practices

    Our Polyester  products are  committed to Quality and Environmental best practice through our ISO 9001 and ISO 14001 certified Quality and Environmental Management Systems.


    Our Polyester  insulation products are made from only polyester fibres so they remain fully recyclable at the end of their lives. Polyester products are manufactured under our Zero Waste policy and using a low-energy production process, putting them among the most environmentally-friendly insulation solutions on the market.

    Safe and friendly solutions for new and existing homes

    Whether your building, renovating or just upgrading insulation in an existing home,  Snug Insualtion  has the right products for the job.

    When it comes to your home and family it just makes sense to insulate with a trusted, safe and friendly insulation product such as our NZ made GreenStuf® - its warmth you can really feel.

    We’ve got a great range of thermal and acoustic solutions for walls, ceilings and underfloors that will keep your home warm and dry in winter, cool in summer and energy-efficient all year round.


  • What is EarthWool made of?


    EarthWool is made using recycled glass bottles (up to 80% recycled content), sand and a revolutionary sustainable binder making it the best choice for environmentally conscious customers.


    Why is EarthWool different than other forms of insulation?


    Knauf Insulation’s new EarthWool products don’t look or feel like any insulation you’ve ever experienced, that’s because the natural brown colour represents a level of sustainability and ease of handling never before achieved in New Zealand. The colour and ‘super soft’ feel comes from a revolutionary sustainable binder which does not contain the oil based chemicals, added formaldehyde or artificial colours commonly used in other insulation.


    Why is EarthWool brown?


    The distinctive brown colour of EarthWool® results from ECOSE® Technology. This natural binding process leads to a natural shade of earthy brown—free from dye or colorants. This is a result of five years of intensive research and development as part of our commitment to being at the forefront of sustainability. In some cases if EarthWool is exposed to UV radiation it may result in a white bleaching effect, however product performance is not diminished.


    Why is EarthWool softer and less itchy than traditional glasswool?


    EarthWool® uses a combination of new technologies which make the product more comfortable to handle. Firstly, Knauf Insulation’s proprietary fiberisation process creates longer strands resulting in less ‘ends’ to reduce mechanical irritation. Secondly, Knauf Insulation’s patented ECOSE Technology results in a much softer, less ‘crunchy’ and less dusty insulation product compared to our traditional glasswool products made using formaldehyde.  EarthWool is easy to cut.


    How does the use of EarthWool affect the air quality in living areas?


    With no added formaldehyde, EarthWool is suitable for use in households with allergies. Knauf has recently become the world’s first company to receive the coveted Eurofins Indoor Air Comfort Gold standard. The Gold standard certificate was awarded to Knauf Insulation’s revolutionary new EarthWool products made with ECOSE Technology.



    • Wool products

      羊毛 保温棉

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      Genuine Sheeps Wool

      Supa-Fill is genuine sheep's wool.  This is unlike some other forms of synthetic materials that make reference to "wool" such as Rockwool etc.  Supa-Filll is a renewable resource produced naturally by sheep.


      Batting and blanket wool fibre insulation

      Natural wool insulation in blanket or batting form.  Ideal for walls of new buildings and ceilings in new and existing premises.



    • Polyester

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      Snug Insulation  is proud to introduce our high-performance range of 100% polyester thermal and acoustic insulation products, designed for the residential and commercial buildings. Our ‘friendly fibre’  Polyester insulation products are the first choice for some of NZ’s leading building industry professionals.  Polyester insulation is used around the world to create buildings that are warm, dry, quiet, healthy and energy-efficient, and with enhanced ‘green’ building credentials.


    • Glass Wool

      玻璃棉 保温棉

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      EarthWool Insulation


      EarthWool is rot-proof, odourless, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. It is chemically neutral, does not contain impurities and comes with a 50 year warranty.