Novecrafto PIR Insulation Board - 5Pcs

The R-value depends on the thickness. For a 50mm board with a thermal conductivity of 0.022 W/(mK), the R-value is approximately 2.27 m²K/W. Always refer to specific calculations for your application's total R-value.

Yes, they are suitable for external wall insulation when installed correctly as part of a compliant system, providing a thermal break and reducing heat loss.

Each pack contains 5 pieces, and each piece measures 1200x450x50mm, covering a total area of 2.7 m² (29.06 ft²).

PIR foam offers good fire performance compared to some other insulation types, but specific fire ratings should be checked against local building regulations for your intended application.

Direct painting or plastering onto the foil is generally not recommended. An appropriate membrane or substrate, such as plasterboard, should be installed over the insulation.

Joints should be sealed using foil tape that is compatible with aluminium foil to maintain airtightness and thermal performance.

PIR insulation is generally suitable for a wide range of temperatures commonly found in buildings, typically between -30°C to +120°C (-22°F to +248°F), but it's best to confirm with the manufacturer's specifications for critical applications.

Ensure you are using a sharp fine-toothed saw or utility knife. Score the foil facing first, then make the cut. For thicker boards, multiple passes may be necessary.

Recut boards to ensure a precise fit. Seal any remaining small gaps with appropriate expanding foam or tape designed for insulation applications.

Repair minor tears with a suitable foil tape. For larger tears, consider if the insulation performance is compromised for that specific section; re-cutting may be an option.