Sopratherm TB4025 25mm PIR Insulation Board

25mm Sopratherm TB4025 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 insulation solution effectively minimises heat transfer and enhances building energy efficiency.

The 25mm Soprema SOPRATHERM insulation boards feature aluminium foil facings on both sides, which boost thermal performance and function as a vapour control layer when properly fitted.

25mm SOPRATHERM TB4025 comes in thicknesses ranging from 20mm to 40mm and carries BBA certification for multiple 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 TB4025 (formerly Celotex TB4000)
3. Thickness: 25mm
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): 1.1 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 TB4025 Applications

The 25mm SOPRATHERM insulation board is a versatile solution suitable for numerous building scenarios. These multipurpose boards are straightforward to cut and fit. Common applications for the 25mm Soprema product 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)

These applications fall within BBA Certificate 25/7318, which validates the product's performance in specified construction systems when installed according to manufacturer specifications.

Fire Performance

SOPRATHERM TB4025 achieves Euroclass F classification for reaction to fire, as tested to BS EN 13501-1.

Under current UK Building Regulations on combustibility, this product cannot be used in the external walls of relevant buildings exceeding 11 metres in height.

Compliance and Installation

SOPRATHERM PIR insulation boards must be selected, 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 optimally within the building structure and satisfies all regulatory requirements.

Info

Browse our full range of Sopratherm Insulation products. We deliver throughout the UK Mainland. For advice on product suitability for your project or to request a quantity discount quotation, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.