60mm 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 insulation performance in heavy-load applications.
Manufactured to 1250mm x 600mm x 60mm dimensions, Soprema XPS 300 SL suits commercial, industrial and specialist construction needs. Typical uses encompass solid floors, underground constructions, basements, car parks, swimming pools, cold storage, and both flat and pitched roof systems.
Versus standard EPS (expanded polystyrene) insulation, which typically provides around 70kPa compressive strength, Soprema SOPRAXPS 300 SL FN delivers substantially superior load-bearing capability. This makes it particularly suited to high-traffic zones and structural applications where performance and durability matter most.
The board incorporates a rebated edge profile that enhances thermal continuity and minimises cold bridging. Its closed-cell XPS structure delivers exceptional resistance to water, moisture and frost, maintaining consistent thermal performance in damp or subterranean conditions. This 60mm Soprema XPS insulation is manufactured using climate-friendly CO₂ technology, supporting sustainable UK construction practices.
For inverted roof applications, including zero-fall and flat roofs, 60mm Soprema SOPRAXPS must be installed with ballast to guarantee stability and long-term performance.
Meeting modern UK building regulation requirements, 60mm Soprema SOPRAXPS 300 SL FN insulation boards deliver exceptional strength, longevity and thermal efficiency for diverse construction and civil engineering projects.
Browse our full Soprema XPS Insulation range. 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 for competitive UK insulation pricing.








