100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)

100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
Rate this product
100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
Our ratings on 26-10-2026:
Google My Business Reviews
4.8 out of 5
Ask question about this product. For price use 'Add to Quote' button.
To GET BEST PRICE for this product only fill below:
Send for Quotation
Need a quote for more products? and continue browsing to find other materials needed.

100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)

Length: 1200mm
Width: 450mm
Thickness: 100mm
Pack Quantity: 4
Board Coverage: 0.54m2
Pack Coverage: 2.16m2
Weight/m2: 3.7kg
Weight: 8kg
Thermal Conductivity: 0.019W/mK
R-Value: 5.25m2K/W
Compressive Strength: 100kPa
Fire Rating (Reaction to Fire): D(Class 3)

100mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board is a high‑performance phenolic insulation panel designed for traditional masonry cavity walls. It delivers excellent thermal efficiency while preserving a clear residual cavity, helping protect buildings from wind‑driven rain. This makes it a strong choice for projects aiming to meet demanding U‑value requirements without increasing wall thickness unnecessarily. Safe‑R 019 (SR019/CW) is a rigid phenolic insulation board faced with composite foil on both sides. Its low declared thermal conductivity of 0.019 W/mK enables superior insulation performance at reduced thicknesses. The board is engineered specifically for partial‑fill cavity wall construction, the most common method in traditional masonry building.

APPLICATION

  • Partial‑fill cavity walls in residential and commercial buildings
  • New‑build masonry construction requiring improved thermal performance
  • Projects targeting lower U‑values while maintaining a conventional wall width

CHARACTERISTICS

  • Phenolic insulation core: Provides high thermal performance with enhanced fire characteristics.
  • Maintains a clear residual cavity: Ensures continued protection against wind‑driven rain.
  • Lower lambda value: Helps achieve improved U‑values without widening the wall build‑up.
  • Foil‑faced on both sides: Enhances thermal efficiency and moisture resistance.
  • Suitable for new build masonry walls: Ideal for traditional cavity wall construction where performance and space efficiency matter.
  • Reaction to Fire: Euroclass D-s1, d0

CERTIFICATION

  • ISO 45001:2023+A1:2024 Occupational Health & Safety Management Systems
  • ISO 9001:2015+A1:2024 Quality Management Systems
  • ISO 14001:2015+A1:2024 Environmental Management Systems

    54.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (45mm PIR Insulation bonded to 9.5mm Plasterboard) 54.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (45mm PIR Insulation bonded to 9.5mm Plasterboard)
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model: 1200mm x 2400mm - 2.88m2
    Delivery Time: 1-3 working days
    54.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (45mm PIR Insulation bonded to 9.5mm Plasterboard)
    54.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 45mm Unilin PIR core with foil faces bonded to 9.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in one opera..
    Guide Price: £55.97
    £67.16 inc VAT
    112.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (100mm PIR Insulation bonded to 12.5mm Plasterboard) 112.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (100mm PIR Insulation bonded to 12.5mm Plasterboard)
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model: 1200mm x 2400mm - 2.88m2
    Delivery Time: 1-3 working days
    112.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (100mm PIR Insulation bonded to 12.5mm Plasterboard)
    112.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 25mm Unilin PIR core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in one ope..
    Guide Price: £74.18
    £89.02 inc VAT
    130mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm 130mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 2.88m2
    Delivery Time: 1-3 working days
    130mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm
    130mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the highest stan..
    Guide Price: £63.52
    £76.22 inc VAT
    86mm Unilin Safe-R 019/STP Phenolic Soffit Insulation Board - 2400mm x 1200mm
    Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 2.88m2
    Delivery Time: 7 - 10 days
    86mm Unilin Safe-R 019/STP Phenolic Soffit Insulation Board - 2400mm x 1200mm
    86mm Unilin Safe-R 019/STP Phenolic Soffit Insulation Board is a high‑performance phenolic soffit insulation board designed for structural ceiling applications where both thermal efficiency and fire performance are critical. It combines a rigid phenolic insulation core with low‑emissivity foil ..
    60mm Unilin XtroLiner XO/UF Underfloor PIR Insulation Board - 1200mm x 2400mm - Pack of 5 60mm Unilin XtroLiner XO/UF Underfloor PIR Insulation Board - 1200mm x 2400mm - Pack of 5
    Brand: Unilin (prev. Xtratherm) Model: 1200x2400mm - 14.4m2
    Delivery Time: 1-3 working days
    60mm Unilin XtroLiner XO/UF Underfloor PIR Insulation Board - 1200mm x 2400mm - Pack of 5
    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. Unilin Xt..
    50mm Unilin Safe-R SR/FB Phenolic Insulation Framing Board (pack of 6) 50mm Unilin Safe-R SR/FB Phenolic Insulation Framing Board (pack of 6)
    Brand: Unilin (prev. Xtratherm) Model: 2400x1200mm - 17.28m2
    Delivery Time: 2 - 3 working days
    50mm Unilin Safe-R SR/FB Phenolic Insulation Framing Board (pack of 6)
    50mm Unilin Safe-R SR/FB Phenolic foam is a superior performance rigid insulation framing board with enhanced fire performance, consisting of an Euroclass B-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR is faced with low emissivity aluminium facings both sides, and ha..
    This product is listed in the following categories and systems (click to show).