What is Polyester?
Polyester is a synthetic fibre. It is made from polyethylene terephthalate (PET), the same material used to make plastic drink bottles. Many drink bottles are recycled by being reheated and turned into polyester fibres, which in addition to being an efficient re-use of plastics, also helps keep polymers out of landfills. As consumers, we must choose to recycle and re-use our plastics, not simply landfill them.
Autex takes its responsibilities for resource use seriously. We are using more and more already recycled polyester ribres (polyester that has already had a previous life as PET plastic). Our GreenStuf products contain a minimum of 45% already recycled fibre.

Are there any chemicals used in the manufacture?
No, all GreenStuf polyester insulation products are made from only 100% plyester fibres. We use heat to weld the fibres together to form the structure of our insulation materials. This process is known as 'thermal bonding' of fibres. Polyester fibre is naturally fire, insect and vermin resistant so no chemical retardants are needed or used. We take this fact very seriously. The use of chemicals is important for us as consumers because unknown exposure can pose serious health risks. Some brands of the more common 'fibre-glass' insulation materials still use formaldehyde based binders in their manufacture. Formaldehyde is a known and classified human carcinogen.

What is an 'R-Value'
The R-Value of an insulation material is the industry-accepted measure of a product's thermal performance. The higher the R-Value, the better the insulation performance. The test method for determining a product's R-Value is the same for all bulk-fibre insulation materials (i.e. polyester, wool blends and fibre-glass) allowing you to compare products on an 'apples for apples' basis.
R-Value performance is based on a product's ability to reduce heat flow. So a higher R-Rated insulation product will keep your home warmer in winter and cooler in summer.

Can i install insulation myself?
Installing GreenStuf insulation is relatively easy. There is no itching and scratching that is often associated with fibre-glass products but The ENERGYWISE funding is not available unless the insulation is professionally installed by an 'Approved Partner'. Your GreenStuf insulation will be professionally installed by your local Hire-a-Hubby.

Why should I choose to use GreenStuf Home Insulation?
Quite simply because they are the best! Our products have been around for over ten years and are now the preferred choice of some of NZ's leading architects and designers. GreenStuf Home Insulation products are manufactured here in NZ under string ISO9001 quality systems and one of the most comprehensive Quality Assurance programmes in the industry. All products are backed with a 50-year durability warranty, and our GreenStuf products are independently appraised for performance by BRANZ.
Our products are safe for you and our environment. They do not contain chemical additives and will never pose a future health risk to you or our planet. All Autex Insulation products contain already recycled fibre, and remain fully recyclable forever. GreenStuf is non-irritant, non-toxic and non-allergenic and the fibres are not of a respirable size (i.e. cannot be breathed into your lungs) so they are safe even for asthma sufferers.