Recycled insulation products to help save the planet

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If you’re looking for ways to help the environment, there are a number of insulation products available that are made almost entirely of recycled or natural products. 

Most are only suitable for loft insulation where they’re not exposed to lots of moisture - but they provide insulation levels equal to the traditional glass fibre and mineral wool products.

These products are easy to handle and cut and have a low carbon footprint, especially as they can also be composted or incinerated for energy use at the end of their (long) life.

Some of the products used for recycling include plastic and glass bottles, cotton and denim fibres and newspaper.

  • Supaloft insulation rolls are made almost entirely from recycled plastic bottles. 
  • Thermofloc, which is a loose bagged insulation is made from recycled newsprint.
  • InnoTherm slabs are made from the re-use and recycling of denim (including jeans) and cotton fibres but contain a binder for structural stability.
  • There are also insulation products made from recycled crushed glass for use beneath ground floor slabs such as Glasscrete and Geocell.

There are also a range of natural insulation products such as:

  • Thermafleece CosyWool and UltraWool – these come in rolls and slabs and are manufactured from 75% British sheep wool and 25% polyester, of which 15% is recycled polyester.
  • Cork insulation exported from Portugal by Secil Argamassas has been used for external wall insulation with a suitable breather membrane.
  • Natural hemp fibres are extremely strong and can be formed into slabs or sprayed within a structure for use in timber frame housing. This is used by companies such as Hempsec.

So, if you’re looking for an alternative with green credentials there’s lots of choice.

What’s more, energy savings mean the insulation pays for itself in a just a few years. 

Don’t forget to check the manufacturer’s instructions to ensure they’re suitable for your proposed use.

Further information

All products linked are part of the LABC Assured Scheme.


Please Note: Every care was taken to ensure the information was correct at the time of publication. Any written guidance provided does not replace the user’s professional judgement. It is the responsibility of the dutyholder or person carrying out the work to ensure compliance with relevant building regulations or applicable technical standards.


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