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Isover Spacesaver Insulation Loft Roll- All Thicknesses


Isover Spacesaver is a glass mineral wool roll which is pre-perforated to fit between common joist spacing at ceiling level. It is supplied in longer-length rolls to help increase the speed of installation and ensure more efficient delivery and storage. Other products within the range include Spacesaver Lite, Spacesaver Ready-Cut and Spacesaver Plus.

Isover Spacesaver can also be considered for use between the joists in suspended timber ground floors and flat roofs.

  • Pre-perforated to 3 x 386mm and 2 x 580mm widths
  • Manufactured from up to 75% recycled glass
  • A+ generic rating within the BRE Global Green Guide
  • Achieves Eurofins Gold certification, the highest accreditation for indoor air quality
Fire Classification

Euroclass A1 Reaction to Fire classification according to EN 13501-1.

100mm- 14.13sm per roll

150mm- 9.34sm per roll

200mm- 6.03sm per roll

Additional information


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Thickness (mm) Length (m) Width* (m) λD Declared thermal conductivity (W/m.K) RD Declared thermal resistance (m².K/W)
100 12.18 1.16 0.044 2.25
150 8.05 1.16 0.044 3.40
200 5.20 1.16 0.044 4.50

*Pre-perforated to 3 x 386mm and 2 x 580mm widths


Spacesaver Data Sheet

From: £30.74

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