160mm Soprema SOPRAXPS 300 SL XPS Board

160mm Soprema SOPRAXPS 300 SL FN is a premium rigid extruded polystyrene (XPS) insulation board engineered for demanding UK construction projects requiring superior compressive strength and water resistance. Delivering 300kPa compressive strength, this board provides robust thermal protection in heavy-load applications.

Manufactured to 1250mm x 600mm x 160mm dimensions, Soprema XPS 300 SL suits commercial, industrial and specialist construction. Common uses include solid floors, underground works, basements, car parks, swimming pools, cold storage, and flat or pitched roof installations.

Compared to standard EPS insulation (typically 70kPa), Soprema SOPRAXPS 300 SL FN offers substantially greater load-bearing capacity. This makes it particularly suited to high-traffic zones and structural applications where durability and performance matter.

Key Benefits

1. Brand: Soprema SOPRAXPS 300 SL FN (Previously Soprema SL)
2. Model: 160mm XPS 300
3. Thickness: 160mm
4. Dimensions: 1,250mm x 600mm x 160mm
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: 5.0m2K/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 design enhances thermal continuity and minimises cold bridging. Its closed-cell XPS structure delivers excellent water, moisture and frost resistance, maintaining thermal performance in wet or below-ground environments. This 160mm board is manufactured using climate-friendly CO₂ technology, supporting sustainable UK construction.

For inverted roof applications, including zero-fall and flat roofs, 160mm Soprema SOPRAXPS must be installed with ballast to guarantee stability and long-term durability.

Meeting contemporary UK building standards, 160mm Soprema SOPRAXPS 300 SL FN insulation boards deliver exceptional strength, longevity and thermal performance across diverse construction and civil engineering applications.

Info

Browse our full Soprema XPS Insulation range. We deliver across the UK Mainland. For product suitability advice on your project or bulk quotations, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.