Glasswool - Earthwool Underfloor roll


  • High thermal performance - year round comfort
  • Wind wash barrier - protection from air movement
  • Non-combustible
  • Saves energy - lower energy bills
  • No added formaldehyde
  • Soft to handle and install
  • Can be stapled in place
  • Compression packed - more product per pack
  • Odourless.

Product Description

Earthwool® Underfloor roll with a wind-wash barrier provides a superior 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®, the insulation can be stapled in place. Earthwool® 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® 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 TypeBlack Tissue Faced


Renovation or New BuildingRenovation & New Building
Building TypeResidential

Product Range


Material CodeThickness (mm)R-Value (m²K/W)Length (mm)Width (mm)Area per pack (m²)Pieces per pack



Thermal ConductivityASTM C 518
Thermal ResistanceASTM C 653
Specification ComplianceAS/NZS 4859.1: 2002
Fire ResistanceASTM E 136Non-combustible
Corrosion ResistanceASTM C 665No greater than sterile cotton
Water Vapour AbsorptionASTM C 1104Less than 5% by weight
Microbial GrowthASTM C 1338Does not support microbial growth


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