Glass Mineral Wool - Earthwool Loft Roll 40


Pitched roofs at ceiling level


Glass Mineral Wool


Earthwool Loft Rolls are non-combustible, Glass Mineral Wool rolls, manufactured using our revolutionary ECOSE® Technology, and are designed specifically for use in cold lofts where pitched roofs are insulated at ceiling level.

Earthwool Loft Roll 40 provides a superior performance with a thermal conductivity of 0.040 W/mK. 

Combi-cut products have partially cut perforations, providing the flexibility to be used between joists at either 400mm or 600mm centres, or used unsplit as a full-width roll.


  • Excellent thermal performance.
  • Non-combustible A1 Euroclass Reaction to Fire classification
  • Combi-cut products are supplied partially perforated
  • Lightweight quilt for ease of installation.
  • Available as partially cut rolls for use with:
    • timber joists at 400mm centres or,
    • timber joists at 600mm centres or,
    • unsplit as a full width roll.



Thickness (mm)Roll TypeThermal Conductivity (W/mK)R-Value (M²K/W)Euroclass Reaction to Fire ClassificationLength (mm)Width (mm)Area per roll (m²)Quantity Per PackArea Per Pack (M²)Packs Per PalletArea Per Pallet (m²)Facing
100Combi-cut0.0402.5A1112501140 (2 x 570mm/3 x 380mm)12.83112.8324307.92Unfaced
150Combi-cut0.0403.75A175301140 (2 x 570mm/3 x 380mm)8.5818.5824205.92Unfaced
200Combi-cut0.0405A148501140 (2 x 570mm/3 x 380mm)5.5315.5324132.72Unfaced


Eurofins Gold
A1 Euroclass Fire Rating
Green Guide Rating A+
CE Marking
Bureau Veritas

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