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At last, a competitively priced alternative to fibreglass, with higher performance. 
NOVATHERM and NOVAHUSH are polyester insulators 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
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 and Novahush as its preferred bulk insulation products because they are the highest performing and most cost-effective available. The performance and the product life is BRANZ appraised for at least 50 years. Unlike common insulating materials, Novatherm will hold its insulation values throughout its life. It does not slump or subside over time. Read the BRANZ Appraisal.
Environmentally Safe and User Friendly
Fibreglass can cause short-term irritation to the skin, eyes, nose and throat. Prolonged exposure to fibreglass 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 - 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 |
Overlaid Installation |
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Material R-value R3.2
System R-value R2.3 |
Material R-value R3.2
System R-value R3.4 |
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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. |
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. |
Features and Benefits
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Features |
Benefits |
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Non-toxic |
Clean installation |
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Non-fibreglass |
No protective wear needed for installation |
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Biologically inert, No chemicals |
No health risk |
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Non-aqueous |
Does not absorb water |
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50 years nominal lifetime |
Expected to be exceeded |
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BRANZ tested T177 |
Performance Certified |
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Zero Fire Rating |
Meets fire standard NZS 4222 - 1992 |
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ISO manufactured |
Product consistency |
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Supplied in rolls not batts |
Easier, faster installation - reduced installation labour cost |
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Tears easily across width |
Reduced installation labour cost |
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Maintains loft over time |
No performance degradation |
Standard Product Range and Pricing (effective from 01/08/2008)
NOVATHERM Ceiling Insulation
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R-Value |
Thickness |
Size |
Area |
Price sqm |
Bale |
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2.4 |
145mm |
2 x 870mm x 11.49m |
20 sqm |
$10.35 |
$207.00 |
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2.6 |
165mm |
2 x 870mm x 11.49m |
20 sqm |
$11.35 |
$227.00 |
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2.8
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175mm |
2 x 870mm x 8.62m |
15 sqm |
$13.40 |
$201.00 |
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3.2 |
200mm |
2 x 870mm x 8.62m |
15 sqm |
$15.10 |
$226.50 |
NOVATHERM Wall Insulation
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R-Value |
Thickness |
Size |
Area |
Price sqm |
Bale |
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1.8 |
95mm |
5 x 380mm x 10.52m |
20 sqm |
$8.50 |
$170.00 |
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1.8 |
95mm |
3 x 580mm x 11.49m |
20 sqm |
$8.50 |
$170.00 |
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2.2
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95mm |
3x 380mm x 13.2m |
15 sqm |
$13.90 |
$208.50 |
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2.2
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95mm |
2 x 580mm x 12.9m |
15 sqm |
$13.90 |
$208.50 |
NOVAHUSH Acoustic Insulation
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Weight |
Thickness |
Size |
Area |
Price sqm |
Bale |
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580g |
65mm |
5 x 380mm x 15m |
30 sqm |
$6.50 |
$195.00 |
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580g |
65mm |
3 x 580mm x 16.66m |
30 sqm |
$6.50 |
$195.00 |
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The product is supplied in rolls, split to the required width, and vacuum-packaged to reduce volume (and therefore shipping costs). Due to vacuum packing, the loft (thickness) on unpacking is less than the fully recovered loft. Full loft recovery will take place over 14 -60 days. As the fibres relax out of compression the product lofts up (this is particularly marked once the product is installed, as warmth helps the process). R2.6 product on some revisited installed sites is now over 185mm thick.
All pricing includes GST and is Ex Negawatt Distribution 76 Fitzherbert St Petone Lower Hutt. Shipping cost on request. For specific information and special requirements please contact us.
Your Choice: You Do or We Do
Novatherm Polyester is safe and easy to install. Download our DIY Installation Instructions here.
Or just get Negawatt's experienced installers to install it. (Installations outside the Greater Wellington on request only - we have accredited installers in many other areas of New Zealand).
Negawatt prides itself on ensuring that you make the right choice and get the best value for money. We do not sell a one-product solution - instead we stock the best products across all areas, and we help you make the best choice. Before jumping in and spending a lot of money, make sure you have the right diagnosis for your home. It's easy to spend a lot of money and be disappointed in the results.
Download Novatherm Information Sheet
Contact Negawatt for a home energy audit, a quote and more information.
Copyright © 2005 Negawatt Resources Limited, All Rights Reserved
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