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Currently in Southern England
1
Choose what you need
Add products to your basket as normal
Add products to your basket as normal
2
Build a quote
Suppliers will quickly bid their best prices in under 24 hours
Suppliers will quickly bid their best prices in under 24 hours
3
Order
Review the offers and place your order
Review the offers and place your order
100mm PIR Insulation Board 2400mm x 1200mm (2.88m²)
100mm PIR Insulation Board - 2400mm x 1200mm (2.88m²)
SKU: 100763
£21.71 - £24.12 + VAT
Pick your preference
Product Description
PIR (polyisocyanurate) insulation boards offer high thermal performance in a slim profile, but different ranges are optimised for different parts of the building envelope. Start by selecting the application (wall, roof, floor, or internal lining), then compare like-for-like products using the key characteristics below.
How do I choose a PIR board?
The guide below explains the key facets that usually matter when choosing a PIR board. Compare products at the same thickness and size first, then check performance and certification details.
1) Application (where it’s used)
Typical values: cavity wall (partial/full fill), pitched roof, flat roof, floor, internal lining.
Why it matters: determines facings, detailing, and the correct compliance evidence for the build-up.
2) Thickness & board size
Typical values: 100mm in 2400×1200mm boards.
Why it matters: thickness drives thermal resistance; board size affects handling, joints and coverage.
3) Thermal conductivity (λ)
Typical values: 0.02–0.025 W/mK.
Why it matters: lower λ means more insulation per mm, which helps you hit U-value targets.
4) Compressive stress
Typical values: 120–150 kPa.
Why it matters: key for floors and roofs where loads are transferred through the insulation.
5) R value (thermal resistance)
Typical values: 4.00–5.00 m²K/W.
Why it matters: higher R improves overall build-up performance; combine with other layers to meet U-values.
6) Certification & reaction to fire
Typical values: varies by range (DoP, BBA, EN standards, Euroclass rating).
Why it matters: supports specification, compliance, and assurance in regulated build-ups.
Choose PIR insulation by application
Selecting the application first helps you compare like-for-like boards at the same thickness and size.
Note: if your required product is not listed below, select the brand in the brand preference drop-down above and add additional product notes, where required.
Cavity Wall
Flat Roof
EcoTherm: Eco-Fix
Mannok: Therm Roof / MFR-FFR
Recticel: Eurothane Eurodeck, Powerdeck F
Floor
Mannok: Therm Floor / MF
Multi-application
Pitched Roof
Mannok: Therm Roof / MR
Timber Framed Wall
Timber/Steel Framed Wall
Mannok: IsoFrame
Product Specification
| Applications | Multi-Application |
| Brand | No Brand |
| Coverage (area m²) | 2.70 |
| Insulation Type | PIR |
| Length (mm) | 2400 |
| Material | Polyisocyanurate (PIR) |
| Thickness (mm) | 100 |
| Width (mm) | 1200 |
| Brands | Celotex (Soprema), EcoTherm, Kingspan, Mannok, Recticel, Unilin (Xtratherm) |
| Dimensions (metric) | 100mm x 2400mm x 1200mm |
| Typical Thermal Conductivity (W/mK) | 0.02–0.025 |
| Typical Compressive Strength (kPa) | 120–150 |
| Typical R Value (m²K/W) | 4.00–5.00 |
| Availability | In Stock |
