Glasswool - Knauf Insulation Roof Blanket

Knauf Insulation Roof Blanket


  • DriTherm® technology - silicone treated glasswool for increased durability
  • 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
  • 50 year warranty
  • 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. 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 in 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.

Enhanced moisture resistance with DriTherm® technology. Knauf Insulation glasswool is silicone treated, which provides moisture resistance for up to 50 years.

Product Range


Material Code R-Value (m²K/W) Thermal Conductivity (W/mK) Thickness (mm) Width (mm) Length (mm) Pieces per pack Area per pack (m²)
683665 1.9 0.039 75 1200 23000 1 27.6
683666 2.4 0.042 100 1200 17500 1 21.0
683667 3.1 0.039 120 1200 14500 1 17.4
683668 3.3 0.039 130 1200 13500 1 16.2

All dimensions are nominal.



Code Performance
Thermal AS/NZS 4859.1 (2018) -
Fire Hazard Properties AS/NZ 1530.3 Ignitability: 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.
Combustibility AS 1530.1 Non-combustible.


Green Tag Level A Certification Green Tag Level A Certification
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BRANZ Appraised (Earthwool glasswool) BRANZ Appraised (Earthwool glasswool)
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CodeMark - Earthwool glasswool CodeMark - Earthwool glasswool
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Eurofins - Indoor Air Comfort Gold (Unfaced GMW) Eurofins - Indoor Air Comfort Gold (Unfaced GMW)
Declare. Declare.
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Knauf Insulation glasswool, Earthwool glasswool (BPIR) Knauf Insulation glasswool, Earthwool glasswool (BPIR)
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Building products that are covered by the CodeMark™ certification scheme are deemed to not be impacted by the regulation and do not require a separate BPIR document. The CodeMark™ certificate, along with associated reference documentation, provides all information outlined in the BPIR regulations, alternatively Knauf Insulation has a dedicated BPIR document for quick reference.

To find out more about our certifications visit: