Sopratherm TB4040 40mm PIR Insulation Board

40mm Sopratherm TB4040 PIR Insulation Board (formerly Celotex TB4000) is a premium polyisocyanurate (PIR) rigid board engineered for diverse construction applications. Delivering a thermal conductivity of 0.022 W/mK, this high-performance board minimises heat loss and enhances building energy efficiency across multiple uses.

Manufactured by Soprema with low-emissivity aluminium foil facings, the 40mm SOPRATHERM insulation boards provide superior thermal performance and function as an effective vapour control layer when properly fitted.

This 40mm variant is BBA certified (Certificate 25/7318) and suitable for a comprehensive range of construction scenarios, including:

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

Pack Size & Coverage

1. Brand: Soprema
2. Product Range: SOPRATHERM TB4040 (formerly Celotex TB4000)
3. Thickness: 40mm
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): 1.80 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 TB4040 Applications

The 40mm SOPRATHERM board is a versatile, multi-purpose solution suitable for numerous building scenarios. Its straightforward cutting and installation characteristics make it practical for a wide spectrum of projects. Common applications for this 40mm variant 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 applications fall within the scope of BBA Certificate 25/7318, which validates the product's performance in specified construction systems when installed according to manufacturer guidance.

Fire Performance

SOPRATHERM TB4040 holds a Reaction to Fire classification of Euroclass F, as tested under BS EN 13501-1 standards.

Under current UK Building Regulations on combustibility, this product is restricted from use within external walls of relevant buildings exceeding 11 metres in height.

Compliance and Installation

SOPRATHERM PIR insulation boards must be specified, fitted and detailed in line with:

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

Proper specification and installation guarantee the insulation functions effectively within the building structure and satisfies all regulatory requirements.

Info

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