Soprema SOPRAXPS 300 SL FN 240mm XPS Board

240mm Soprema SOPRAXPS 300 SL FN is a premium rigid extruded polystyrene (XPS) insulation board engineered for demanding UK construction projects where superior compressive strength and water resistance are required. Delivering 300kPa compressive strength, this board provides robust thermal protection in heavy-load applications.

Manufactured to 1250mm x 600mm x 240mm, Soprema XPS 300 SL suits diverse commercial, industrial and specialist uses. Common applications include solid floors, underground structures, basements, car parks, swimming pools, cold storage, and both flat and pitched roof systems.

Unlike standard EPS (expanded polystyrene) at approximately 70kPa, Soprema SOPRAXPS 300 SL FN delivers substantially greater load-bearing capacity. This makes it particularly suited to high-traffic zones and structural applications demanding strength and dependability.

Key Benefits

1. Brand: Soprema SOPRAXPS 300 SL FN (Previously Soprema SL)
2. Model: 240mm XPS 300
3. Thickness: 240mm
4. Dimensions: 1,250mm x 600mm x 240mm
5. Board Length: 1250mm
6. Board Width: 600mm
7. Pack of: 2
8. Board Coverage: 0.75m2
9. Pack Coverage: 1.5m2
10. Density: 35kg/m3
11. R-Value: 7.50m2K/W
12. Thermal Conductivity: 0.032 W/mK
13. Compressive Strength: 300kPa
14. Material: Extruded Polystyrene
15. Edge Profile: Rebated edge
16. Surface: Smooth
17. Reacting to fire: F
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 rebated edge profile enhances thermal continuity and minimises cold bridging. Its closed-cell XPS structure delivers excellent water, moisture and frost resistance, maintaining consistent thermal performance in damp or subterranean conditions. This 240mm Soprema XPS insulation utilises climate-friendly CO₂ technology, supporting sustainable UK construction.

For inverted roof applications, including zero-fall and flat roofs, 240mm Soprema SOPRAXPS must be installed with ballast to guarantee stability and sustained performance.

Meeting modern UK building regulations, 240mm Soprema SOPRAXPS 300 SL FN insulation boards deliver exceptional strength, durability and thermal efficiency for diverse construction and civil engineering applications.

Info

Browse our Soprema XPS Insulation range. We supply throughout the UK Mainland. For product suitability advice or quantity discount quotations, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.