Sopratherm XR4165 165mm PIR Board

165mm Sopratherm XR4165 PIR Insulation Board (formerly Celotex XR4000) is a rigid polyisocyanurate (PIR) insulation solution engineered for diverse building applications. Delivering a thermal conductivity rating of 0.022 W/mK, this high-performance board minimises heat transfer and enhances overall building energy efficiency.

Manufactured by Soprema, the 165mm SOPRATHERM insulation boards feature aluminium foil facings on both sides, which boost thermal performance and function as a vapour control layer when properly fitted.

165mm SOPRATHERM XR4165 carries BBA certification (Certificate 25/7318) and suits multiple applications:

1. Pitched roof insulation
2. Internal dry lining systems
3. Floor insulation

Pack Size & Coverage

1. Brand: Soprema
2. Product Range: SOPRATHERM XR4165 (formerly Celotex XR4000)
3. Thickness: 165mm
4. Dimensions: 2400 × 1200 mm
5. Board Length: 2400mm
6. Board Width: 1200mm
7. Board Coverage: 2.88m2
8. Pieces Per Pack: 1
9. Thermal Conductivity: 0.022W/mK
10. Thermal resistance (Rd): 7.50 m².K/W
11. Compressive Strength: 120 kPa
12. Density: 31kg/m3
13. Fire Rating: Euroclass F
14. Material: PIR
15. Finishing top: Alu-kraft
16. Finishing bottom: Alu-kraft
17. Edge Profile: Straight
18. Facing: Low Emissivity Foil
19. Aluminium foil surface emissivity: 0.05
20. Weight (kg/m2): 0.79kg/m2
21. BBA certified: Certificate 25/7318 (Pitched Roof, Dry Lining, Floor Insulation)

Sopratherm XR4165 Applications

This versatile 165mm PIR board suits numerous construction scenarios. Its straightforward cutting and installation make it ideal for various projects. Common applications include:

1. Concrete Slab (Ground Floor)
2. Suspended Timber Joist (Ground Floor)
3. Beam and Block (Ground Floor)
4. Upgrading Existing Concrete Slab (Ground Floor)
5. Timber Frame Internal Linings (External Wall)
6. Timber Frame Sheathing (External Wall)
7. Between Timber Frame Studs (External Wall)
8. Solid Masonry Internal Linings (External Wall)
9. Over Timber Rafters (Pitched Roof)
10. Sarking (Pitched Roof)
11. Below Timber Rafters (Pitched Roof)
12. Between Timber Rafters (Pitched Roof)
13. Loft Insulation – Between and Over Timber Joists (Pitched Roof)
14. Balconies & Terraces Over Joists (Flat Roof)
15. Between Timber Joists (Flat Roof)
16. Below Timber Joists (Flat Roof)

All these uses fall within BBA Certificate 25/7318, validating product performance in approved construction methods when fitted per manufacturer specifications.

Fire Performance

SOPRATHERM XR4165 achieves Euroclass F classification under BS EN 13501-1 fire testing standards.

In line with current UK Building Regulations on combustibility, this product cannot be installed in external walls of relevant buildings exceeding 11 metres in height.

Compliance and Installation

SOPRATHERM PIR insulation boards must be selected, fitted and detailed according to:

• UK Building Regulations
• Relevant statutory guidance
• Applicable British Standards
• The manufacturer's installation instructions

Proper selection and installation guarantee optimal insulation performance within the building structure and full regulatory compliance.

Info

Explore our complete Sopratherm Insulation range. We deliver across the UK Mainland. For advice on product suitability for your build, or to request a bulk discount quote, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.