190mm Ravatherm XPS 300 SL Flat Roof Board

190mm 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 0.031 W/m·K, ensuring superior energy efficiency for your building envelope.

Designed with environmental responsibility in mind, Ravatherm XPS 300 SL features a Global Warming Potential (GWP) of less than five, making it an excellent choice for sustainable construction projects throughout the United Kingdom.

The 190mm 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: 190mm Ravatherm 300SL
• Thickness: 190mm
• Board Length: 1250mm
• Board Width: 600mm
• Pack Quantity: 2
• Board Coverage: 0.75m2
• Pack Coverage: 1.50m2
• Thermal Conductivity: 0.031W/mK
• R-Value: 6.10m2K/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 300 SL XPS boards are extensively specified across the UK for roofing, flooring and wall applications. Manufactured and dispatched from King's Lynn, Norfolk, Ravatherm brings over 65 years of XPS insulation experience to the market.

Built using advanced extrusion technology, Ravatherm 190mm XPS boards incorporate a closed-cell structure and smooth extrusion skin that deliver exceptional strength and long-term durability. Available across a selection of thicknesses and compressive strengths, these boards feature innovative low-GWP CO₂ and HFO blowing agent technology.

Enhance your building's thermal performance with 190mm XPS 300 SL, the preferred solution for UK flat roof insulation schemes.

Info

Browse our complete range of Ravatherm Extruded Polystyrene Insulation products. We deliver throughout the 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 - Lowest UK Insulation Prices near me.