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Structural Products

Isover Spacesaver Ready-Cut

Thermal insulation for pitched roof joist applications.
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Thermal insulation for pitched roof joist applications.
 
 
 
 
 

Description

Isover Spacesaver Ready-Cut is a glass mineral wool roll, which is pre-cut to fit between common joist spacing at ceiling level. It is supplied in longer-length rolls to increase efficiency by reducing the number of rolls required to be delivered, stored and opened during installation.

Other products within the range include Isover Spacesaver, Isover Spacesaver Lite and Isover Spacesaver Plus.

Isover Spacesaver Ready-Cut can also be used between the joists in suspended timber ground floors and flat roofs.

Key Benefits

  • Thermal Insulation - Thermal conductivity of 0.044 W/m.K. Helps to reduce heat loss within the building envelope and and as a result decreases energy costs.
  • Isover Spacesaver Ready-Cut has Eurofins Indoor Air Comfort® Gold Certification - the highest accreditation for indoor air quality.
  • Ease of Install - Supplied in longer-roll lengths for speed and ease of installation, maximising on-site efficiency. The rolls are pre-cut (3 x 386 and 2 x 580mm widths) to fit common joist spacing.
  • Fire Classification - Achieves a Euroclass A1 Reaction to Fire classification, according to EN 13501-1. For enquiries regarding test data for Reaction to Fire classifications, please contact [email protected].
  • Sustainability
    • Contains Recycled Glass - Isover Spacesaver Ready-Cut contains recycled glass. A combination of 52% externally sourced recycled glass and 30% internally sourced glass cullet.
    • Renewable Electricity - All electric equipment in the plant powered by 100% renewable electricity.

Application

Pitched Roof/Joist level/Loft
Ground Floor
Flat Roof

Product Variants

Articles information
Name Thickness (mm) Length (m) Length (mm) Width (m) Pack/Roll Area (m2) Rolls/Packs per Pallet Pallet Area (m2) λD Declared thermal conductivity (W/m.K) RD Declared thermal resistance (m².K/W)
Name5200861922 Thickness (mm)100 Length (m)12.18 Length (mm)12180 Width (m)3 x 0.386 Pack/Roll Area (m2)14.1 Rolls/Packs per Pallet24 Pallet Area (m2)338.51 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)2.25
Name5200861942 Thickness (mm)150 Length (m)8.05 Length (mm)8050 Width (m)3 x 0.386 Pack/Roll Area (m2)9.32 Rolls/Packs per Pallet24 Pallet Area (m2)223.73 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)3.4
Name5200861971 Thickness (mm)150 Length (m)8.05 Length (mm)8050 Width (m)2 x 0.580 Pack/Roll Area (m2)9.34 Rolls/Packs per Pallet24 Pallet Area (m2)224.11 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)3.4
Name5200861975 Thickness (mm)200 Length (m)5.2 Length (mm)5200 Width (m)2 x 0.580 Pack/Roll Area (m2)6.03 Rolls/Packs per Pallet24 Pallet Area (m2)144.77 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)4.5
Name5200861980 Thickness (mm)200 Length (m)5.2 Length (mm)5200 Width (m)3 x 0.386 Pack/Roll Area (m2)6.02 Rolls/Packs per Pallet24 Pallet Area (m2)144.52 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)4.5
Name5200862146 Thickness (mm)100 Length (m)12.18 Length (mm)12180 Width (m)2 x 0.580 Pack/Roll Area (m2)14.13 Rolls/Packs per Pallet24 Pallet Area (m2)339.09 λD Declared thermal conductivity (W/m.K)0.044 RD Declared thermal resistance (m².K/W)2.25

Technical Information

Category Attribute Value
Category General Attribute Fire Classification Value Euroclass A1 Reaction to Fire classification according to EN 13501-1.
Category Standards and Certifications Attribute Quality Standard Value All Isover products are manufactured under Quality Management Standard – ISO 9001.
Attribute Indoor Air Quality Value Achieves a Eurofins Gold product status for indoor air quality.
Attribute EUCEB Value EUCEB certified demonstrating our mineral wool fibre products conform with Note Q of Regulation (EC) No 1272/2008.
Attribute Environmental Standard Value All Isover products are manufactured under Environmental Management System – ISO 14001.

Documents

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Certificates
2 datasheets related with the product
Certificate - EUCEB
IACG-400-06-01-2025-Indoor-Air-Comfort-Gold-Certificate.pdf
Declaration of Performance
2 datasheets related with the product
DoP - 0004 CE - Isover Spacesaver
DoP - 0004 UK - Isover Spacesaver
Environmental Product Declaration (EPD)
3 datasheets related with the product
EPD - Isover Spacesaver Ready Cut - 100mm
EPD - Isover Spacesaver Ready Cut - 150mm
EPD - Isover Spacesaver Ready Cut - 200mm
Product Datasheet
1 datasheet related with the product
PDS - Isover Spacesaver Ready Cut
Product guide
1 datasheet related with the product
Product and Delivery Guide.pdf
Safe Use Instruction Sheet
1 datasheet related with the product
SUIS - Safe Use Instruction Sheet
Isover Spacesaver

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