135mm knauf insulation pretoria

The 135mm Knauf is one of the most popular insulation products in South Africa. Imported from Germany, it’s SANS compliant with an R-value of 3.38 and a 12kg density.

More than 40 years of experience in the insulation industry, Knauf Insulation is one of the fastest-growing and most respected names in insulation worldwide.




  • Manufactured from 80% recycled glass.
  • Using an ECOSE® Technology Binder – the natural brown colour represents a level of sustainability never achieved before.
  • No added formaldehyde (this causes the itch in other fibreglass products)
  • No added artificial colours or bleaches
  • Earthwool with ECOSE Technology consumes 70% less energy compared to traditional formaldehyde-based binders and reduces CO2 emissions up to 25%.
  • Highly durable – rot proof, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.




  • Thickness: 135mm Knauf
  • Length: 7.5
  • Width: 1.2m
  • Area Cover: 9m
  • R-value: 3.38
  • Density: 12kg
  • Fire Rating: EUROCLASS A1 – Non-Combustible




  • Lifelong energy savings.
  • Lightweight and easy to install.
  • Exceptional thermal and acoustic properties.
  • Safe application and use.
  • Maintenance-free.
  • Long product life – will not readily age.
  • Compression packed to reduce volume and optimise transportation.
  • Not combustible, Class 1 Fire Rating.




  • Fire Classification: EUROCLASS A1
  • In accordance with: SANS 428:2012: SANS 10177-5 A –
  • Non-Combustible and SANS 10177 -10 A1 – No flame spread
  • (Fire test report available upon request)

Fire-resistant benefits of fibreglass without the itchy irritation. Odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria. Read more on Knauf VS Aerolite.

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