100mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board (pack of 4)




100mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board (pack of 4)
- Product Code: A1-4955
- Delivery Time: 1-3 working days
- Brand: Unilin (prev. Xtratherm)
- Model and Size: 2400x1200mm - 11.52m2
- Weight: 36.86kg
Our ratings on 30-06-2025:

4.8 out of 5
100mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board (pack of 4)
Length: 2400mm
Width: 1200mm
Thickness: 100mm
Pack Quantity: 4
Board Coverage: 2.88m2
Pack Coverage: 11.52m2
Density: 32kg/m3
Weight/m2: 3.2kg
Weight: 36.86kg
Thermal Conductivity: 0.022W/mK
R-Value: 4.55m2K/W
Compressive Strength: 150kPa
Fire Rating (Reaction to Fire): E
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 FR/ALU high thermal performance boards are compatible with mechanically fixed single ply systems and loose laid ballasted systems. This board i not suitable for applications with built-up bitumen based roofing or mastic asphalt systems.
Note: This board was formerly known as 100mm Xtratherm Thin-R FR/ALU Flat Roof PIR Insulation Board
APPLICATION
- Flat roofs
CHARACTERISTICS
- Superior performance PIR foam core,
- Can be readily cut using a sharp knife or fine toothed saw,
- Vapour-tight aluminium facings on both sides,
- Effective thermal performance,
- Limits the risk of condensation,
- For new build or refurbishment,
- Will have life as long as the roof waterproof covering,
- Rot proof and will remain effective for the life span of the building.
CERTIFICATION

Brand: Unilin (prev. Xtratherm)
Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
76mm Unilin FR/TP Thermal Ply 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 6mm WBP grade plywood. This combination provides both high levels of thermal insulation and ..
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..
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
99.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 90mm 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 comp..
Guide Price: £66.91
£80.29 inc VAT
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
87.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 75mm Unilin PIR core faced with composite kraft paper bonded to 12.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell com..
Guide Price: £57.84
£69.41 inc VAT
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin XtroLiner XO/PR board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XtroLiner XO/PR board offers excellent insulation performance with excellent thermal conductivity. Unilin XtroLiner XO/PR is CFC & HCFC free and is ma..
Brand: Unilin (prev. Xtratherm)
Model and Size: 2400x1200mm - 34.56m2
Delivery Time: 1-3 working days
25mm 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 FR..