56mm Unilin Safe-R SR/STP Phenolic Soffit Plus Board - (50mm Phenolic and 6mm Building Panel)
56mm Unilin Safe-R SR/STP Phenolic Soffit Plus Board - (50mm Phenolic and 6mm Building Panel)
- Product Code: A1-4989
- Delivery Time: 2 - 3 working days
- Brand: Unilin (prev. Xtratherm) (Tech. support: 03712221055)
- Model and Size: 2400x1200mm - 2.88m2
Our ratings on 19-11-2025:
4.8 out of 5
56mm Unilin Safe-R SR/STP Phenolic Soffit Plus Board - (50mm Phenolic + 6mm Building Panel)
Length: 2400mm
Width: 1200mm
Thickness: 56mm
Board Coverage: 2.88m2
Thermal Conductivity: 0.021W/mK
R-Value: 2.35m2K/W
Compressive Strength: 120kPa
Fire Rating (Reaction to Fire): B(Class 0)
56mm Unilin Safe-R SR/STP Phenolic Soffit Plus Board (50mm Phenolic + 6mm Building Panel) is a superior performance ceiling insulation board with enhanced fire performance, consisting of an Euroclass B s1 d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/STP phenolic core 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 56mm Xtratherm Safe-R SR/STP Phenolic Soffit Plus Board
APPLICATION
- Designed to use for ceiling 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 B 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

Brand: Unilin (prev. Xtratherm)
Model and Size: 2400x1200mm - 5.76m2
Delivery Time: 1-3 working days
150mm 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..
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200x450mm - 2.16m2
Delivery Time: 1-3 working days
110mm Unilin ECO360/CT CavityTherm Full Fill Cavity Wall board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin ECO360 CT board reduces the junctions prone to ..
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
47.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 35mm 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 oper..
Guide Price: £43.25
£51.90 inc VAT
Brand: Unilin (prev. Xtratherm)
Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
70mm Unilin Thin-r XT/TF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings for use in timber framed walls. Unilin XT/TF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/TF is CFC & HCFC free and is manuf..
Guide Price: £30.55
£36.66 inc VAT
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
29.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 20mm 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: £37.05
£44.46 inc VAT
Brand: Unilin (prev. Xtratherm)
Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
79mm Unilin Plydeck Flat Roof Board is a high-performance composite board designed for flat roof applications. It comprises a 70mm rigid polyisocyanurate (PIR) insulation board directly bonded to a 9mm OSB board. This combination provides both high levels of thermal insulation and a robust decking s..