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)
- Model and Size: 2400x1200mm - 2.88m2
Our ratings on 29-08-2025:

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 - 2.88m2
Delivery Time: 2 - 3 working days
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 ..
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
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Guide Price: £57.62
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Model and Size: 1200x450mm - 3.24m2
Delivery Time: 2 - 4 days
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Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
27.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 15mm 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: £36.50
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Brand: Unilin (prev. Xtratherm)
Model and Size: 1200x600mm - 1.44m2
Delivery Time: 1-3 working days
125mm Unilin Stonewool SW/RS Insulation Slab is a non-combustible Euroclass A1 stone wool insulation used as ventilated rainscreen façade and framing applications and curtain walling. Unilin Stonewool SW/RS insulation provides a uniform, high density solution providing resilience during the bui..