Ravatherm 120mm XPS 300 SL Flat Roof Board

120mm Ravatherm XPS 300 SL is a premium extruded polystyrene (XPS) thermal insulation board engineered for inverted flat roofs across the UK, including green roofs, brown roofs, and blue roof systems. This board delivers outstanding thermal performance with a declared thermal conductivity of 0.030 W/m·K for thicknesses up to and including 120 mm, and 0.031 W/m·K for thicknesses above 120 mm.

Built with environmental responsibility at its core, Ravatherm XPS 300 SL achieves a Global Warming Potential (GWP) of less than five, making it an excellent option for sustainable and energy-efficient building projects throughout the United Kingdom.

The 120mm XPS insulation boards come in thicknesses ranging from 50 mm to 200 mm, offering flexibility for diverse commercial and residential flat roofing applications, whether for new construction or renovation work.

Key Benefits

• Brand: Ravago
• Model: 120mm Ravatherm 300SL
• Thickness: 120mm
• Board Length: 1250mm
• Board Width: 600mm
• Pack Quantity: 3
• Board Coverage: 0.75m2
• Pack Coverage: 2.25m2
• Thermal Conductivity: 0.031W/mK
• R-Value: 3.55m2K/W
• Compressive strength@ 10% deformation: 300kPa
• Compressive Creep max after 50 years < 2% deformation under stress σC: 130kPa
• Fire Rating (Reaction to Fire): E
• Water vapour diffusion resistance factor μ (tabulated value): 100
• Temperature limits: -50/+75
• Edge Profile: Ship lap
• Surface finish: Skin

Application

• Inverted Roofs
• Green Roofs
• Roof Terraces
• Car Park Decks

Key Benefits

1. High-performance thermal insulation for flat roofs
2. Suitable for green, brown, and blue roof systems
3. Low GWP for sustainable construction
4. Complies with UK energy efficiency standards
5. Wide range of thicknesses (50–200 mm)

Ravatherm 120mm XPS 300 SL boards are a trusted solution 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 experience to every product.

Engineered using advanced extrusion technology, Ravatherm 120mm XPS boards feature a closed-cell structure and smooth extrusion skin that delivers exceptional strength and long-term durability. Available across multiple thicknesses and compressive strengths, these boards incorporate innovative low-GWP CO₂ and HFO blowing agent technology.

Enhance your building's thermal performance with 120mm XPS 300 SL, the proven solution for UK flat roof insulation projects.

Info

Explore our full range of Ravatherm Extruded Polystyrene Insulation products. We deliver across the entire UK Mainland. For technical advice on product suitability for your project, or to request a quantity discount quotation, please contact us by phone on 02038839057 / 02038839057, email sales@insulationbee.co.uk or Live Chat - Lowest UK Insulation Prices near me.