NOVAtherm Polyester Insulation
Ceilings,Walls,Floors
NOVAtherm are polyester insulators are made from a low denier hollow core conjugate-helical synthetic fibre. It closely replicates the insulating performance of fine wool.
Life-Time High Performance
BRANZ Appraised Manufacturers Brochure
As appraised by BRANZ, the NOVAtherm product range will perform for 50 years. InsulPro guarantee it. NOVAtherm is made from 100% polyester fibres and has a high recycled content (reconstituted fibre) which are bonded together using heat not glue, so unlike other products, there are no components which can break down.
Environmentally Safe and User Friendly
- All NOVAtherm products contain recycled polyester fibre made from plastic bottles.
- NOVAtherm will absorb noise to create a quieter environment
- NOVAtherm is manufactured in New Zealand
- NOVAtherm will perform as well when installed for at least 50 years
- NOVAtherm is resistant to vermin attack as polyester fibres are not a food source
NOVAtherm products are classified by OSH as both non-irritant and non-toxic. NOVAtherm is 100% safe for everyone, including asthma sufferers. Some traditional insulation products use formaldehyde in the glue, but NOVAtherm is made from fibres bonded by heat.
Easy and fast to install
NOVAtherm ceiling blanket and NOVAfloor are favourites of many New Zealand installers since they are easy, fast and safe to work with. Professionals will get the job done right and be out of your house quickly. NOVAtherm is a risk-free choice.
Best value for money
Long-lasting high-performance insulation can save you money in heating and cooling bills and protect your family's health. The up-front cost of premium insulation is well worth the investment.
Insulation must have the ability to be installed so that it performs effectively over it's life time. Once the internal lining goes up, no one knows what's happening behind it. Yet your home will be occupied for decades ahead and you will want to be warm for all of that time.
Negawatt has chosen NOVAtherm as its preferred bulk insulation products supplier who we have worked very closely with since there inception. They are the highest performing and most cost-effective available. NOVAtherm will hold its insulation values throughout its life. It does not slump or subside over time.
Fibreglass can cause short-term irritation to the skin, eyes, nose and throat. Prolonged exposure to fibre glass particles in your living environment may cause respiratory problems.
NOVAtherm polyester insulation is completely inert and does not incorporate any added chemicals. No protective clothing or respiratory equipment is required whilst being installed.
48% Higher Thermal Performance With - Overlaid Ceiling Insulation
The way insulation is installed impacts greatly on the performance achieved. Once installed the building component is termed as having a system R-value. The product R-Value as stated on the packaging or information pamphlet of the insulation is not necessarily the system R-Value achieved.
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Common Installation

Material R-value R3.2
System R-value R2.3
Common ceiling insulating materials are installed in between the ceiling joists (biscuit installation). The thermal bridging of the timber joists then reduces thermal performance of the insulation by up to 25%. Poor installation practice (e.g. with small gaps around the edges) can cut down another 50% of the performance.
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Overlaid Installation

Material R-value R3.2
System R-value R3.4
NOVAtherm Polyester Insulation comes in rolls, which allows for installing the ceiling insulation overlaid rather than put between the ceiling joists and thus achieving 45% higher thermal performance.The R-Value comparison of biscuit and overlay installation techniques has been confirmed by BRANZ Appraisal 430 (2002) for NOVAtherm Polyester Insulation.
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Features and Benefits
Features
- Non-toxic
- Non-fibreglass
- Biologically inert, No chemicals
- Non-aqueous ( hydrophobic )
- 50 years nominal lifetime
- BRANZ tested T177
- Zero Fire Rating
- ISO manufactured
- Supplied in rolls not batts
- Tears easily across width
- Maintains loft over time
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Benefits
- Clean installation
- No protective wear needed for installation
- No health risk
- Does not absorb water
- Expected to be exceeded
- Performance Certified
- Meets fire standard NZS 4222 - 1992
- Product consistency
- Easier, faster installation - reduced installation labour cost
- Reduced installation labour cost
- No performance degradation
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