Glasswool - Knauf Insulation Acoustic Wall and Midfloor

Knauf Insulation Acoustic Wall and Midfloor


  • 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

The Knauf Insulation acoustic batt range includes a selection of densities to provide builders, designers, installers and DIYers the opportunity to choose the best acoustic performance for their project. Knauf Insulation acoustic batt will improve the acoustic performance of the building in which it has been installed by absorbing the transfer of unwanted sound from external sources and between adjoining rooms.

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 CodeApplicationR-Value (m²K/W)Thermal Conductivity (W/mK)Density (kg/m³)Thickness (mm)Width (mm)Length (mm)Pieces per packArea per pack (m²)
683669Suspended ceiling grid1.3 (Estimated)0.03911.0506002700 (folded segment)2032.4
683669Steel frame partition walls1.3 (Estimated)0.03911.0506002700 (folded segments)2032.4
683670Steel frame partition walls1.9 (Estimated)0.04011.0756002700 (folded segments)1422.7
683670Suspended ceiling grid1.9 (Estimated)0.04011.0756002700 (folded segments)1422.7
683655Timber frame partition walls2.60.03520.1904301160147.0
683656Timber frame partition walls2.60.03520.1905801160149.4
683646Timber frame partition walls2.80.03230.7904301160105.0
683647Timber frame partition walls2.80.03230.7905801160106.7
683641Timber frame partition walls3.60.03913.414058011601510.1
691267Timber frame partition walls4.10.03522.6140580116096.1

All densities and 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.


Green Tag Level A Certification
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BRANZ Appraised (Earthwool glasswool)
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CodeMark - Earthwool glasswool
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Eurofins - Indoor Air Comfort Gold (Unfaced GMW)
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