Ravatherm XPS X 700 SL 50mm insulation board is engineered for demanding applications including load-bearing industrial floors, base slabs, and high-load rooftop car parks. With a thermal conductivity of 0.031 W/m·K and minimal water absorption of 0.7% (EN 12087), this product delivers reliable thermal performance. The global warming potential is less than 5.
This XPS board provides a compressive strength of 700 kPa (EN 826) and compressive creep resistance of 250 kPa, ensuring less than 2% deformation after 50 years under load (EN 1606). Available in thicknesses ranging from 50 mm to 200 mm, it suits both new construction and refurbishment projects across commercial and residential flat roofing applications.
Ravatherm XPS X 700 SL is widely specified across the UK for roofing, flooring and wall applications. Manufactured and dispatched from King's Lynn, Norfolk, Ravatherm brings over 65 years of UK XPS insulation heritage.
Utilising advanced extrusion technology, Ravatherm XPS boards feature a closed-cell structure with smooth extrusion skin for superior strength and longevity. Supplied in various thicknesses and compressive strengths, including innovative low-GWP CO₂ and HFO blowing agent options.
Enhance your building's thermal performance with Ravatherm XPS X 700 SL, the preferred solution for UK flat roof insulation schemes.
Browse our full range of Ravatherm Extruded Polystyrene Insulation products. We deliver across the entire UK Mainland. For product suitability advice, quantity discounts, or technical support, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.








