Polyiso · foil-faced · duct board
PIR & Polyurethane Insulation Boards
PIR (polyisocyanurate) insulation board has a thermal conductivity of about 0.020–0.024 W/(m·K), roughly R-6 to R-6.5 per inch. Be There supplies 20–200 mm boards in 1200 × 2400 mm and 1200 × 600 mm sizes with foil, kraft or glass-tissue facings.
λ 0.020–0.024 W/(m·K)
λ 0.020–0.024 W/(m·K)Specifications
Typical models.
Rigid PIR and PU foam boards with aluminium foil, kraft or glass-tissue facings for walls, roofs, HVAC ducts and cold rooms. The highest R-value per inch of the common rigid insulation boards. Values are typical; we configure voltage, size or capacity and confirm data on the quotation.
| Product | Thickness | Density | Thermal conductivity λ | Facing | Board size |
|---|---|---|---|---|---|
| PIR wall & roof board | 20–200 mm | 35–45 kg/m³ | 0.022 W/(m·K) | Embossed aluminium foil, both sides | 1200 × 2400 mm |
| PIR duct board | 20–30 mm | 40–50 kg/m³ | 0.020–0.022 W/(m·K) | Aluminium foil, both sides | 1200 × 3000 / 4000 mm |
| PU board (economy) | 20–150 mm | 35–40 kg/m³ | 0.022–0.024 W/(m·K) | Kraft or glass tissue | 1200 × 600 / 2400 mm |
| High-density PU board | 10–100 mm | 60–300 kg/m³ | 0.025–0.035 W/(m·K) | Bare | Cut to size |
≈ approximate, measured at standard test conditions.
Features
Built for daily commercial use.
Highest R per inch
PIR delivers about R-6 to R-6.5 per inch, more than XPS or EPS at the same thickness.
Fire behaviour
PIR chars instead of melting and reaches B1 in GB 8624 testing, which is why insurers and fire codes prefer it.
Foil facings
Embossed aluminium foil acts as a vapour barrier and radiant barrier in walls, roofs and ducts.
Cut to size
Standard boards or custom sizes, shiplap or tongue-and-groove edges on request.
Applications
Where it works.
- Cold room and freezer walls
- Flat and pitched roofs
- Pre-insulated HVAC air ducts
- Cavity walls
- Floors and underfloor heating
- Pipe and tank insulation
What is PIR insulation?
Is polyiso the same as PIR?
What R-value is a 2-inch foil-faced PIR board?
Can I use PIR board as duct board?
Related reading
Before you order.
Buying guide3 min read
Cold Room Panel Thickness: How to Choose 75, 100, 150 or 200 mm
A practical guide to PU and PIR sandwich panel thickness for chillers, freezers and blast rooms, with U-values you can check yourself.
Read the guideTechnical3 min read
PIR vs PU vs XPS vs EPS Insulation: R-Values Compared
R-value per inch, moisture, strength and fire behaviour of the four common rigid foam boards, with a chart for cold rooms and buildings.
Read the guideRelated
More from this line.
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