Menu
Menu
Your Cart

100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)

100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
  • Product Code: A1-4976
  • Delivery Time: 2 - 3 working days
  • Brand: Unilin (prev. Xtratherm)
  • Model and Size: 1200x450mm - 2.16m2
Our ratings on 16-09-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

100mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)

Length: 1200mm
Width: 450mm
Thickness: 100mm
Pack Quantity: 4
Board Coverage: 0.54m2
Pack Coverage: 2.16m2
Thermal Conductivity: 0.021W/mK
R-Value: 5m2K/W
Compressive Strength: 100kPa
Fire Rating (Reaction to Fire): B(Class 0)

100mm Unilin Safe-R SR/CW Phenolic Foam Insulation Board is a superior performance rigid partial fill cavity insulation board with enhanced fire performance, consisting of an Euroclass D-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/CW is faced with low emissivity aluminium facings both sides, and has a thermal conductivity as low as 0.020W/mK.

Note: This product was formerly known as 100mm Xtratherm Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board

APPLICATION
  • For partial fill cavity insulation
CHARACTERISTICS
  • Superior performance phenolic foam,
  • Provides the most efficient U-values with minimal thickness,
  • Effective thermal and fire performance,
  • Low smoke obscuration,
  • Low risk fire rating - Euroclass D-s1, d0,
  • For new build or refurbishment,
  • Rot proof and will remain effective for the life span of the building,
  • Can be readily cut using a sharp knife or fine toothed saw.
CERTIFICATION

    109.5mm Unilin XT/TL Thermal Liner Dot and Dab (100mm PIR Insulation bonded to 9.5mm Plasterboard)
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 2400mm - 2.88m2
    Delivery Time: 1-3 working days
    109.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 100mm Unilin PIR core faced with composite kraft paper bonded to 9.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell co..
    Guide Price: £66.59
    £79.91 inc VAT
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 14.4m2
    Delivery Time: 1-3 working days
    60mm Unilin XtroLiner XO/UF board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings and prevents downward heat loss through floors. Unilin XtroLiner XO/UF board offers excellent insulation performance with excellent thermal conductivity. Unil..
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
    Delivery Time: 1-3 working days
    100mm Unilin XtroLiner XtroDeck XO/XD board has a core of modified polyisocyanurate (PIR) bonded to low emissivity embossed aluminium foil facings. Unilin XtroLiner XtroDeck XO/XD board offers excellent insulation performance with excellent thermal conductivity.Unilin XtroLiner XtroDeck XO/XD b..
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 17.28m2
    Delivery Time: 2 - 3 working days
    50mm Unilin Safe-R SR/ST Phenolic foam is a superior performance rigid insulation soffit board with enhanced fire performance, consisting of a C-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/ST is faced with low emissivity aluminium facings both sides, and has a therm..
    Get Best Price
    92.5mm Unilin Safe-R SR/TB-MF (80mm Phenolic Core and 12.5mm Plasterboard) -  Mechanical Fixing (pack of 4) 92.5mm Unilin Safe-R SR/TB-MF (80mm Phenolic Core and 12.5mm Plasterboard) -  Mechanical Fixing (pack of 4)
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200 - 11.52m2
    Delivery Time: 2 - 3 working days
    92.5mm Unilin Safe-R SR/TB-MF is a composite insulated panel of 80mm Phenolic core with a composite foil facing bonded to a 12.5mm tapered edge plasterboard for internal applications, mechanically fixed. Unilin Safe-R SR/TB-MF is designed to provide high levels of thermal insulation and dry lining i..
    Guide Price: £495.03
    £594.04 inc VAT
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 11.52m2
    Delivery Time: 1-3 working days
    100mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board is a flat roof insulation with enhanced vapour resistant performance. Unilin Thin-R FR/ALU board is faced with low emissivity aluminium facings both sides. Rot proof and will remain effective for the life span of the building. Unilin Thin-R F..
    Get Best Price
    This product is listed in the following categories and systems (click to show).