Isover Spacesaver Ready-Cut loft insulation helps improve energy efficiency and reduces heating costs. Now supplied in longer length rolls they are ideal for new build and renovation projects.

Isover Spacesaver Ready-Cut is a glass mineral wool which provides thermal insulation at joist level for cold roof applications. These strong, resilient and flexible rolls are now supplied in longer length rolls to help increase speed of installation and ensure more efficient deliveries and storage.

The rolls are manufactured in 100, 150 and 200mm thicknesses, pre-cut to 3x386mm or 2x580mm widths to fit between common joist spacing. They are installed in at least two layers, the first layer between the joists and the subsequent layer(s) cross laid over joists.


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Product - Spacesaver Ready Cut
Spacesaver Ready-Cut
Product - Spacesaver Ready CutSpacesaver Ready-Cut

Key Benefits

  • Thermal performance - Thermal conductivity of 0.044 W/mK. Helps to reduce heat loss within the building envelope and decrease energy costs.
  • Rolls are now supplied 33% longer for speed of installation and more efficient deliveries and storage1.
  • Non-combustible - Isover glass mineral wool insulation has an A1 Euroclass fire rating – the best attainable.
  • Recycled content - Manufactured from up to 80% recycled glass.
1 Range average - specific rolls will vary according to the new roll length stated.

Variants Details

Product details

Order Code Thickness Width (mm) Length Pack area (m2) Pallet area (m2) Product Name Units per pallet
5200862146 100 2 x 580 12180 14.13 339.12 Spacesaver Ready-Cut - 100mm (2 x 580) 24
5200861922 100 3 x 386 12180 14.10 338.40 Spacesaver Ready-Cut - 100mm (3 x 386) 24
5200861971 150 2 x 580 8050 9.34 224.16 Spacesaver Ready-Cut - 150mm (2 x 580) 24
5200861942 150 3 x 386 8050 9.32 223.68 Spacesaver Ready-Cut - 150mm (3 x 386) 24
5200861975 200 2 x 580 5200 6.03 144.72 Spacesaver Ready-Cut - 200mm (2 x 580) 24
5200861980 200 3 x 386 5200 6.02 144.48 Spacesaver Ready-Cut - 200mm (3 x 386) 24