140mm Soprema SOPRAXPS 500 XPS Board

140mm Soprema SOPRAXPS 500 SL ES XPS board is a rigid extruded polystyrene thermal insulation product designed for demanding UK construction applications requiring robust compressive strength and extended durability. Built with climate-friendly CO₂ technology, this 140mm board provides excellent thermal efficiency and moisture resistance in challenging conditions.

Suited to structural floors, car parks, basements and inverted roofs, the 140mm Soprema SOPRAXPS 500 SL ES delivers high load-bearing capability with a minimum compressive strength of ≥500 kPa, ensuring structural integrity under sustained pressure and reliable long-term performance.

This xps insulation board incorporates a smooth finish with shiplap (SL) edge profile for secure interlocking joints, minimising thermal bridging and streamlining the installation process. Certified to BS EN 13164 with CE marking and compatible with SOPREMA waterproofing systems, it satisfies UK and European quality and durability requirements.

Key Benefits

1. Brand: Soprema SOPRAXPS 500 SL ES (Previously Soprema SL)
2. Model: 140mm XPS 500
3. Thickness: 140mm
4. Dimensions: 1,250mm x 600mm x 140mm
5. Board Length: 1250mm
6. Board Width: 600mm
7. Pack of: 3
8. Board Coverage: 0.75m2
9. Pack Coverage: 2.30m2
10. Density: 35kg/m3
11. R-Value: 4.10m2K/W
12. Thermal Conductivity: 0.034 W/mK
13. Compressive Strength: 500kPa
14. Material: Extruded Polystyrene
15. Edge Profile: Rebated edge
16. Surface: Smooth
17. Reacting to fire: E
18. Applications: Garage, Car parks, Roof, Floor, Basement
19. Features: High quality ǀ Waterproof ǀ Rigid XPS
20. Manufacturer: SOPREMA

Key Features

• Moisture-Resistant
• Shiplap (SL) Edges
• High Compressive Strength
• Closed-Cell XPS Foam Core

The SOPRAXPS 500 SL ES range is available in multiple thicknesses, delivering strong thermal performance with low thermal conductivity (approximately 0.036 W/mK), making it an effective solution for energy-efficient construction design.

Ideal for developers, architects and contractors seeking dependable insulation solutions, this XPS board combines structural strength, moisture resistance and environmental responsibility in a single high-performance product.

Meeting modern UK building regulation standards, 140mm Soprema SOPRAXPS 500 SL ES insulation boards provide exceptional strength, durability and thermal efficiency for diverse construction and civil engineering applications.

Info

Browse our full range of Soprema XPS insulation products. We deliver throughout the UK Mainland. For product suitability advice on your project or to request a bulk quotation, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.