Celotex Isover

ISOVER Spacesaver

ISOVER Spacesaver (pre-perforated), Spacesaver Lite (shorter length, pre-perforated) and Spacesaver Ready-Cut (pre-cut) have a thermal conductivity of 0.044W/m.K. The economical and easy-to-install glass mineral wool rolls are suitable for loft insulation, where they are typically installed in a minimum of two layers, the first layer between the joists and the subsequent layer(s) cross-laid over joists. They can also be installed between the joists in suspended timber ground floors and flat roofs.

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  • Pitched Roof – Between and Over Joists
  • Flat Roof - Between Joists
  • Ground Floor Suspended Timber – Between Joists

Product Features

  • Spacesaver - pre-perforated to 3x386mm and 2x580mm widths
  • Spacesaver Lite – shorter roll lengths, pre-perforated to 3x386mm and 2x580mm widths
  • Spacesaver Ready-Cut – pre-cut to 3x386mm or 2x580mm widths
  • Manufactured from up to 75% recycled glass
  • A+ generic rating within the BRE Global Green Guide
  • Spacesaver and Spacesaver Ready-Cut achieve Eurofins Gold certification, the highest accreditation for indoor air quality

Product Properties

  • Board / Roll size: Spacesaver: Width 1160mm, Length 5200-12180mm | Spacesaver Ready-Cut: Width 3x386 or 2x580mm, Length 5200-12180mm | Spacesaver Lite: Width 1160mm, Length: 3500-7000mm
  • Thickness : 100-200mm
  • Material: Glass mineral wool

Product Performance

  • Lambda: 0.044 W/m.K
  • Reaction to Fire: Euroclass A1 Reaction to Fire classification, according to EN 13501-1

Product Benefits

  • Helps to reduce heat loss within the building envelope and decrease energy costs
  • Economical and easy-to-install with minimal waste
  • Pre-perforated or pre-cut widths to fit common joist spacing
  • Longer roll lengths help increase speed of installation and ensure more efficient deliveries and storage
  • Shorter roll lengths ensure lighter weight option for ease of handling
  • Non-combustible - achieves Euroclass A1 Reaction to Fire classification