80mm Soprema SOPRATHERM CW4080 PIR Board

80mm Soprema SOPRATHERM CW4080 (previously Celotex CW4000) is a high-performance PIR insulation board engineered for cavity wall applications with a thermal conductivity of 0.022 W/mK. Featuring aluminium foil facing on both sides, this board delivers excellent thermal resistance and carries BBA certification for partial fill cavity wall installations (Certificate 24/7312). Supplied in thicknesses ranging from 50mm to 100mm.

Pack Size & Coverage

1. Brand: Soprema CW4000
2. Model: 80mm SOPRATHERM CW4080 (previously Celotex CW4080)
3. Thickness: 80mm
4. Length: 1200mm
5. Width: 450mm
6. Pack quantity: 7
7. Board Coverage: 0.54m2
8. Pack Coverage: 3.78m2
9. R-Value: 3.60m2K/W
10. Thermal Conductivity: 0.022 W/mk
11. Density: 30Kg/m3
12. Edge profile: Straight edge
13. Vapour Resistivity: 100 MNs/gm
14. Building Regulations: Compliant
15. Material: PIR
16. Finishing top: Alu-kraft
17. Finishing bottom: Alu-kraft
18. Shipping method: Articulated Vehicle
19. Applications: Cavity Walls ǀ Masonry Walls | 80mm Partial fill insulation
20. BBA Certified: Yes (no. 16/5343)
21. Features: High-performance Cavity Wall Board

This PIR insulation board is manufactured to fit standard cavity wall tie spacing, eliminating the need for cutting during most installations. This design feature streamlines the installation process and reduces labour time on-site.

When properly installed, Soprema CW4080 helps properties achieve UK Building Regulations compliance for energy efficiency and carbon reduction targets. The product holds BBA certification from the British Board of Agrément, confirming its reliability and thermal performance standards.

Benefits

1. Declared Thermal Conductivity (λD): 0.022 W/mK
2. Nominal Board Dimensions: 2400 x 1200 mm
3. Thickness Range: 40 mm to 100 mm
4. Edge Profile: Straight
5. Aluminium Foil Surface Emissivity: 0.05
6. BBA Certified: Certificate 25/7312 (Partial Fill Cavity Walls)

Application

• Primary Application: Partial-Fill Cavity Walls: The 80mm Soprema CW4000 is positioned against the inner masonry leaf, maintaining a standard 50 mm air gap to the outer leaf.
• New Build & Refurbishment: Ideal for both new masonry construction projects and enhancing thermal performance in existing cavity wall systems.

Reaction to fire

• 80mm SOPRATHERM CW4000 PIR insulation board achieves a Euroclass F reaction to fire rating per BS EN 13501-1.
• Under current UK Building Regulations regarding combustibility, this product cannot be used in external walls of buildings exceeding 11 m in height.
• Verify that 80mm CW4000 is selected and installed in accordance with all applicable Building Regulations, statutory guidance, and relevant standards.

Standards & Certification

• Thermal conductivity: 0.022W/mK, per BS EN 13165 for factory-manufactured rigid polyurethane foam (PU) products
• Spread of flame: Euroclass F Reaction to Fire rating per BS EN 13501-1. Products at this classification level do not receive a smoke emission rating.
• BRE Green Guide Rating: A
• Certification: BBA certified

Info

Browse our full range of Sopratherm insulation products. We deliver across the UK Mainland. For advice on product suitability for your project or to request a bulk discount quotation, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.