Soprema SOPRAXPS 300 SL FN 220mm XPS Board

220mm Soprema SOPRAXPS 300 SL FN Insulation Board is a premium rigid extruded polystyrene (XPS) product engineered for demanding UK construction projects requiring superior compressive strength and water resistance. Delivering 300kPa compressive strength, this board provides robust thermal performance in heavy-load applications.

Manufactured at 1250mm x 600mm x 220mm, Soprema XPS 300 SL suits diverse commercial, industrial and specialist uses. Standard applications span solid floors, underground work, basements, car parks, swimming pools, cold storage, and flat and pitched roof systems.

Compared to standard EPS (expanded polystyrene) insulation, which typically achieves around 70kPa compressive strength, Soprema SOPRAXPS 300 SL FN provides substantially greater load-bearing capacity. This makes it particularly suited to high-traffic zones and structural applications where strength and dependability matter.

Key Benefits

1. Brand: Soprema SOPRAXPS 300 SL FN (Previously Soprema SL)
2. Model: 220mm XPS 300
3. Thickness: 220mm
4. Dimensions: 1,250mm x 600mm x 220mm
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: 6.85m2K/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 board incorporates a rebated edge profile that enhances thermal continuity and minimises cold bridging. Its closed-cell XPS construction delivers exceptional resistance to water, moisture and frost, maintaining consistent thermal performance in damp or subterranean environments. This 220mm Soprema XPS insulation is manufactured using climate-friendly CO₂ technology, promoting sustainable construction methods across the UK.

For inverted roof applications, including zero-fall and flat roofs, 220mm Soprema SOPRAXPS must be installed with ballast to guarantee stability and sustained performance.

Engineered to satisfy modern UK building regulations, 220mm Soprema SOPRAXPS 300 SL FN insulation boards deliver exceptional strength, durability and thermal efficiency for a broad spectrum of construction and civil engineering applications.

Info

Browse our full range of Soprema XPS Insulation products. We deliver across the entire UK Mainland. To discuss product suitability for your project or request a quantity discount quotation, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.