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Polymax R2.5 | Coffs Harbour | Polyester Underfloor Insulation

Polymax R2.5 | Coffs Harbour | Polyester Underfloor Insulation

Underfloor Insulation

Regular price $100.00
Regular price $136.00 Sale price $100.00
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  • 100% Polyester
  • Made from 45% recycled plastic bottles
  • Not itchy, non toxic, non allergenic
  • Australian Made
  • Returns within 30 days


Please be aware that all Polymax products are made to order. ecoMaster recommends that you do not book any installers or time off until you have received your insulation. To find out the manufacturer lead time for your order please contact our helpful team on 1300 326 627.Polymax underfloor insulation comes in different widths. To make sure you order the correct width for your project be sure to check out the FAQ. This Polyester underfloor insulation is suitable for sub-tropical climates like the Coff’s Harbour Region.  Australia’s insulation manufacturer CSR has made this 100% Polyester, with45%of its content made fromrecycled materials, especially for homes with wooden floors.Beautiful beaches and a laidback atmosphere are conducive to a great lifestyle. Whatever type of home you live in with wooden floors this insulation will certainly improve the thermal comfort of your home, help to control moisture and mould and reduce your energy costs. This region with its wonderful climate provides plenty of opportunities for relishing outdoor activities. You come indoors forcoolness and comfort. But, the majority of your electricity is spent on cooling and dehumidifying your home.10 Reasons why you need underfloor insulation in a sub-tropical climate:  1. Helps control moisture and mould  2. Keeps homes drier inside  3. Reduces risk of stains on wooden floors  4. Reduces risk of wooden floors warping  5. Reduces air leakage/draughts  6. Helps reduce toxins entering your home  7. Reduces the risk of rodents, insects and other pests from nesting underneath your floor  8. Improves the thermal comfort of your home  9. Reduces your energy costs  10. Better for the environmentWooden floors expand and contract based on temperature and are especially vulnerable to moisture. There is a natural force that drives the warmth, heat and humidity surrounding your home into your cool and relatively drier home. This also has the potential to stain or warp the wood. Filling the gaps and cracks and then insulating underneath your floor will help create a vapour barrier, preventing moisture from creeping in and soaking into the wooden floors.You can improve the quality of your home, be more comfortable and save on energy costs with Polymax R2.5 Polyester underfloor insulation.It is thesafestandmost effective insulationfor homes with wooden floors in the sub-tropical climate of the Coffs Harbour Region.Save money now and forever.



  • 100% Polyester
  • Contains at least 45% recycled component
  • Non irritant, non-toxic, non-allergenic, and non-respirable.
  • No itching, no glass fibres in your skin, eyes or lungs.
  • Maintains its loft (thickness) for the lifetime of your home
  • Can be firmly secured between the joists with staples 
  • Hydrophobic, does not hold moisture
  • Not affected by mold or mildew
  • Rodent resistant – rats and mice don’t like it, won’t eat it, and won’t nest in it.
  • Non flammable – will not hold a flame
  • Heat-bonded, with no binding chemicals or glues
  • Formaldehyde-free
  • ISO9001 Quality Certification
  • ISO14001 Environmental Management System Certification
  • 70 years Durability Warranty
  • Manufactured in Australia
  • Made for Australian wooden floors


  • Helps make your home warmer in winter and cooler in summer
  • Reduces energy costs by up to 20%
  • Prevents draughts from coming up through your floor boards 
  • Perfect for allergy sufferers as it is non toxic and non allergenic
  • Improves the value of your home
ecoMaster's polyester subfloor insulation is rated at R2.5,  which achieves an overall rating of R 3.2 (without carpet) or R 3.5 (with carpet).



Width 450mm 430mm
Product R Rating R2.5 R2.5
Pack Type Standard Narrow
Coverage Per Pack 13.4m2 8.62m2
Rolls Per Pack 3 2
Length Per Roll 10 metres 10 metres
Loft/Thickness 140mm 140mm
Size of Pack Height 1350mm 860mm
Size of Pack Diameter 700mm 700mm
Weight 24Kg 15Kg
Material Polyester 100% 100%
Material Recycled Poly 45% 45%
Manufactured Australia Australia
Apha W NA NA




How To

ecoMaster have made it easy for you to insulate your own wooden floors with the safest and most effective Polymax underfloor insulation.

What you will need: 

  • Stapler (Electric, Double Insulated - not a hand stapler)
  • Staples (Galvanised)
  • Headlamp/flashlight
  • Gloves (Garden)
  • Goggles
  • Tarps (Helps keep insulation clean)
  • Lead/Extension Cord
  • Clothes that can get dirty
  • An installation buddy

Insulating a Web Truss Floor can be tricky, so we have a "How To" video to make it easy:  

 Pro Tips:

  • Open the packs a day or two before installing to allow the insulation to reloft
  • We recommend stapling the material at 100mm - 150mm intervals to ensure it is secure and will not sag over time.
  • For the greatest long lasting result, make sure the insulation staples that are used are galvanised staples.

Find Out More:


Q: What does Polymax Underfloor Insulation do?
A: Polymax underfloor insulation acts as a thermal barrier for your floors, to keep the outer temperature outside, and maintain the temperature of your home inside.  It also stops draughts, dust and pollen from coming up through your floorboards. 

Q: Can Polymax Underfloor Insulation be used in my climate zone?
A: You can use Polymax Underfloor Insulation in climate zones 2, 4, 5, 6, 7, & 8.

Q: Should I order the 430mm or the 450mm wide Polymax? 
A: For best fit and easiest installation, the material width should be 20mm wider than the space between the joists. To order the best material for your project, it is best to measure the space between the joists of your floor. Typically, joists will be 410mm (common in Sydney and Brisbane) so order 430mm wide. For spaces of 430mm between the joists (common in Melbourne) use the 450mm wide Polymax. If you are unsure please give us a call on 1300 326 627.

Q: Not all my joist spacing is the same? 
A: This is normal. Every underfloor has some degree of joist spacing variation. It is inevitable that some degree of Turn and Tear installation will need to be done. Be sure to watch the installation video found under the How To tab.

Q: Is Polymax vacuum packed?
A: No it is not vacuum packed but it is squeezed tightly into a double bag. For this reason it is best to immediately open the bags when you receive them to ensure the material has time to fluff up to its natural thickness before you install.

Q: Is Polymax Underfloor Insulation easy to install?
A: The difficulty of installing underfloor insulation largely depends on your individual home. Factors like height under the floor, joist spacing, access, among other things all play a part. Feel free to reach out to us if you have any questions about the installation, email us here, or call 1300 326 627.

Q: Do you have a recommended installer for the underfloor insulation?
A: A recommended installer is highly location dependent. To find out if we have a recommended installer in your area please email us here, or call 1300 326 627.

Q: What is the underfloor insulation made of?
A: Polymax underfloor insulation is made from 100% polyester, with at least 45% of that being recycled plastic bottles

Q: Is it fire rated?
A: This excerpt is taken from the datasheet:

The following results were obtained when Polymax was subjected to early fire hazard testing in accordance withAustralian Standards AS 1530.3: 

* Ignitability Index: 0
* Heat Evolved Index: 0
* Spread of Flame Index: 0
* Smoke Developed Index: 0

Q: Is there a noise reduction benefit on using the bulk insulation products
A: All insulation will have an acoustic benefit due to its density, unfortunately it is difficult to say how much because underfloor insulation is designed for thermal performance.

Q: How much improvement would underfloor insulation make?
A: Without underfloor insulation, your floorboards are the same temperature as outside, this is due to the floorboards rating is R0.7.  
With carpet and a great underlay, the rating is R1.0 and for many people an additional R0.3 is noticeable. When you add our underfloor insulation to your home, your floor will have a minimum rating of R3.2 with a timber floor, or R3.5 with carpeted floor.  With underfloor insulation installed, your floorboards are the same temperature as inside.

Q: Does wind affect the effectiveness of underfloor Insulation?
A: Polymax underfloor insulation has a slightly more dense face.  Ensure that is facing the ground.  Apart from being better for stapling through it also reduces wind penetration of the insulation.  Unless your underfloor is extremely windy, the wind will not penetrate the insulation.  "Wind wash" is simply a marketing term. 

Q: Can I cut the Polymax Underfloor Insulation?
A: Manipulating Polymax underfloor installation can be quite easy due to the manufacturer designing it to have a strong integrity when it is rolled out. If it is laying across you it is a LOT easier to tear. If using the turn and tear method is not something that you were interested in you are able to cut our installation with a fine metal cutting blade attached to a circular saw.

PLEASE NOTE This method may not be desirable due to the waste that will inevitably be produced and also reducing the coverage that the underfloor insulation pack will provide.

Q: Can I get a sample?
A: Yes. There is an underfloor insulation sample kit available. 
The cost of the sample kit is refunded when you purchase your underfloor insulation from ecoMaster.

Q: What are the dimensions?
A: There are two different variants of Polymax underfloor insulation.  Please check the Specifications carefully.  [Learn More]

Q: Can I return the insulation if I have ordered too much?
A: As this is custom manufactured to your order, you cannot return it.  However, if you have over-ordered, please contact us and we will help you sell it via social media where the demand for polyester underfloor insulation is quite buoyant. 


Q: How will my order be delivered?
A: We will contact you after your order has been placed with us and advise when your order will be manufactured and delivered to your home.  Your order will be delivered by a Bradford CSR driver. 

Q: Where can you deliver to?
A: Orders can be delivered to anywhere within Coffs Harbour and surrounding areas of the Mid North Coast of New South Wales.  Freighters may be able to deliver further afield. However, the freight costs can become relatively high if you are in a regional or remote area.  Consider collaborating with your neighbours to share an order as the freight price is the same whether there are a few bags or the truck is filled to capacity.  Please contact us with your location for a freight quote. 

Q: Can I collect my order from the Coffs Harbour Depot?  
A: Yes.  You will be advised when your order is expected to arrive in Coffs Harbour and then again when it has actually arrived. 

Q: Can I collect my order from the Sydney manufacturing plant? 
A: Yes, you can.  Indicate that you want to collect from Sydney when you place your order.  You will be advised when your order is ready. 

Q:  Can I get a return excess insulation?
A:  No.  All Polymax orders are "made to order" and cannot be returned.  If you have excess insulation, please contact us and we will help you sell it via social media.  There is a bouyant market for polyester insulation. 


Q: What is the product warranty for Polymax?
A: Polymax carries a product warranty of 70 years, but can be highly effective for much longer than that. We have not yet seen a 'failed' polyester product. It is incredibly robust and is not damaged by the elements that would generally damage other types of insulation. 

Q: What is the installation warranty for Polymax?
A: As Polymax is a DIY product there is no warranty on installation.  

To get the best value for your investment, please, PLEASE watch the installation videos before you proceed.  

Q: How do I register for my 70 year warranty? 
A: Great question!   Register your purchase here and remember to retain your tax invoice.  Attach it to your warranty when you download it after registration.  File it with your important documents.  The warranty will be transferable to new owners of your home - so make sure they know about the warranty and provide them with the documentation to support it. 

If you have any questions, contact the ecoMaster team.  We are all ex-installers and have done this work thousands of times before.  We are here to help you.

Q: What do I do if I have a problem with this product?  
A: Refer to our Returns / Refunds page [Learn More].  Our Research and Development team will be keenly interested to learn of any product failure and will want images and samples of the product (if possible) so they can determine what the cause of failure was.    

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