100mm Ravatherm XPS 300 SL Flat Roof Board

100mm Ravatherm XPS 300 SL is a premium extruded polystyrene (XPS) thermal insulation board engineered for flat roof applications throughout the UK, particularly suited to green roofs, brown roofs, and blue roof systems. This board provides 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 exceeding 120 mm.

Designed with environmental responsibility at its core, Ravatherm XPS 300 SL achieves a Global Warming Potential (GWP) of less than five, making it an ideal solution for sustainable and energy-efficient construction projects across the UK.

The 100mm XPS boards are supplied in thicknesses ranging from 50 mm to 200 mm, offering flexibility for diverse commercial and residential flat roofing schemes, whether new construction or renovation work.

Key Benefits

• Brand: Ravago
• Model: 100mm Ravatherm 300SL
• Thickness: 100mm
• Board Length: 1250mm
• Board Width: 600mm
• Pack Quantity: 4
• Board Coverage: 0.75m2
• Pack Coverage: 3m2
• Thermal Conductivity: 0.030W/mK
• R-Value: 3.20m2K/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 100mm XPS 300 SL boards are extensively specified across the UK for roofing, flooring and wall applications. Manufactured and distributed from King's Lynn, Norfolk, Ravatherm brings over 65 years of proven XPS insulation experience to the market.

Produced using state-of-the-art extrusion technology, these boards feature a closed-cell structure and smooth extrusion skin that delivers exceptional strength and longevity. Available across multiple thicknesses and compressive strength grades, with cutting-edge low-GWP CO₂ and HFO blowing agent technology.

Enhance your building's thermal performance with 100mm XPS 300 SL, the proven solution for UK flat roof insulation requirements.

Info

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