Glasswool - Earthwool glasswool insulation: Underfloor roll

Earthwool glasswool insulation: Underfloor roll


  • High thermal performance - year round comfort
  • DriTherm® technology - silicone treated glasswool for increased durability
  • Sound absorbing
  • Wind-wash barrier - protection from air movement
  • Saves energy - lower energy bills
  • No added formaldehyde
  • Soft to handle and install
  • Friction fit
  • Compression packed - more product per pack
  • Odourless.

Product Description

Earthwool® glasswool insulation: underfloor roll with a wind-wash barrier provides a high performing solution for improving the thermal performance of timber frame floors. The wind-wash barrier provides protection from air movement under the floor.
Adding to the already easy to handle and install qualities of Earthwool® glasswool,
the insulation can be stapled in place. Earthwool® glasswool insulation: underfloor roll 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. Super-soft to handle and install, Earthwool® 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. Earthwool® glasswool insulation is silicone treated, which provides moisture resistance for up to 50 years.

Product Range


Material CodeR-Value (m²K/W)Thermal Conductivity (W/mK)Thickness (mm)Width (mm)Length (mm)Pieces per packArea per pack (m²)

All dimensions are nominal.



ThermalAS/NZS 4859.1 (2018)-
Fire Hazard PropertiesAS/NZS 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.

*The above data excludes the facing.


CodeMark - Earthwool glasswool
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