Glasswool - Knauf Insulation Roof blanket

Knauf Insulation Roof blanket


  • TwinTech® - smooth finish on both sides
  • High thermal performance - year round comfort
  • Sound absorbing
  • Non-combustible
  • Saves energy - lower energy bills
  • No added formaldehyde
  • Soft to handle and install
  • Compression packed - more product per pack
  • Odourless.

Product Description

Knauf Insulation Roof blanket (unfaced) provides thermal and acoustic insulation for commercial roofs. Condensation control can be achieved when the product is faced with foil of the appropriate duty classification. The Knauf Insulation Roof blanket (unfaced) range includes a selection of R-values to provide builders, designers and installers the opportunity to choose the best thermal performance for their project. Knauf Insulation Roof blanket (unfaced) will improve the thermal comfort and energy efficiency of the building in which it has been installed thus keeping it cool in summer and warm in winter.

The super-soft and easy to handle benefits of Knauf Insulation glasswool have been further enhanced with TwinTech®. TwinTech® heralds another advancement insulation manufacture - the dual forming technique ensures there is a smooth finish on both sides of the insulation, which improves product handling and appearance. Knauf Insulation glasswool is made using up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde.


Product TypeRoll
Facing TypeUnfaced


Building TypeResidential & Commercial

Product Range


Material CodeR-Value (m²K/W)Thermal Conductivity (W/mK)Thickness (mm)Width (mm)Length (mm)Pieces per packArea per pack (m²)Available Facing
6836401.30.04255120030000136.0Light duty, Heavy duty, Non-combustible
6836631.50.04060120028000133.6Light duty, Heavy duty, Non-combustible
6836591.80.04275120023000127.6Light duty, Heavy duty, Non-combustible
6836602.30.043100120017500121.0Light duty, Heavy duty, Non-combustible
6836612.50.042105120016500119.8Light duty, Heavy duty, Non-combustible
6836623.00.040120120014500117.4Light duty, Heavy duty, Non-combustible
6836433.20.041130120013500116.2Light duty, Heavy duty, Non-combustible
6837203.70.0351301200650017.8Light duty, Heavy duty, Non-combustible
7238003.60.041145120010000112.0Light duty, Heavy duty, Non-combustible

All dimensions are nominal.



ThermalAS/NZS 4859.1 (2018)-
Fire Hazard PropertiesAS/NZ 1530.3Ignitability: 0, Spread of Flame: 0, Heat Evolved: 0, Smoke Developed: 0-1.
Water Vapour Absorption-Less than 5% by weight.
Microbial Growth-Does not support microbial growth.
Corrosion Resistance-No greater than sterile cotton.
CombustibilityAS 1530.1Non-combustible.
Group ClassificationAS 5637.1Group 1 (For all Knauf Insulation approved foil facing options)

* Group 1 applies to all Knauf Insulation approved foil facing options – refer to the Group Classification Test Report for more information.


BRANZ Appraised
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GreenTag Level A Certification
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EUCEB (UK plant)
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Eurofins (Unfaced Glass Mineral wool)
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CodeMark (Earthwool)
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Download DOCX
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Group 1 Classification Test Report
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