Premium 3mm High-Density Underlay with Damp Proof Membrane 10m2 Roll

Sonic Red Underlay – Premium 3mm High-Density EVA with Integrated Damp Proof Membrane

Looking for the best underlay for laminate, engineered wood? The Sonic Red Underlay delivers unbeatable performance, protection, and value — making it a top choice for homeowners and professional installers across the UK.

Crafted from high-density closed-cell EVA foam, this 3mm underlay features an integrated red foil damp proof membrane for ultimate moisture protection. With an impact sound reduction of 21dB, it dramatically reduces noise and enhances comfort underfoot — perfect for busy homes, flats, and multi-level properties.

Engineered for thermal efficiency with a TOG rating of 0.84, it helps keep floors warm while providing a durable, stable base. Its high compression strength (256kPa) ensures long-lasting support, even in high-traffic areas.

Quick and easy to install, with a 100mm overlap for joint sealing, the Sonic Red Underlay covers 10m² per roll and is compatible with underfloor heating systems.

Key Features:

• 3mm thickness, ideal for laminate and engineered wood

• 21dB impact sound insulation – quiet and comfortable

• Integrated damp proof membrane – blocks rising moisture

• High density: 110kg/m³ – stable and long-wearing

• 10m² coverage per roll with 100mm overlap for easy fitting

• Thermal resistance: 0.084 m²K/W (0.84 TOG)

• Compression strength: 256kPa – supports heavy loads

• Low water absorption and wide working temperature range (-40°C to 80°C)

Whether you’re laying a new laminate floor in your living room or upgrading the underlay in a rental property, Sonic Red offers premium performance at a budget-friendly price.

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