Acoustic 4.5mm Underlay | Premium Sound Reduction Underlay


Our 4.5mm Acoustic Rubber Underlay is a premium, high-density rubber underlay designed for applications where exceptional sound performance and long-term durability are essential. Suitable for both domestic and commercial projects, this underlay delivers industry-leading acoustic reduction, making spaces quieter, more comfortable and more stable underfoot.

Whether you're refurbishing a flat, upgrading a multi-storey property, insulating hotel rooms or improving soundproofing in busy family homes, this product provides a reliable and professional-grade foundation for laminate, engineered wood and click-system floors.

Its dense rubber structure reduces impact sound transmission and ensures long-lasting compression strength, helping protect your flooring from wear over time while maintaining a solid, stable feel.

Exceptional Acoustic Performance

The 4.5mm acoustic rubber layer offers outstanding impact sound reduction — up to **26dB**, depending on the flooring system. This makes it ideal for:

  • Multi-level homes
  • Apartment buildings
  • Offices & commercial units
  • Hotels & student accommodation

The dense composition absorbs vibrations before they pass through the subfloor, ensuring noticeable improvements in noise control and comfort.

Moisture & Subfloor Protection

A built-in gold vapour barrier helps prevent moisture transfer from the subfloor. When installed with vapour tape, it forms a continuous protective layer, reducing the risk of movement, swelling and long-term damage to the flooring above.

Easy Installation & Professional Reliability

This underlay is designed for installers who require both performance and practicality. It cuts cleanly, lays flat and works perfectly beneath:

  • Engineered wood flooring
  • LVT (floating systems)
  • Laminate flooring
  • Click-system flooring

Its high tensile strength ensures the floor above remains supported, helping prevent hollow spots, creaking and premature board movement.

It also assists with slight subfloor unevenness, helping create a smoother, more stable finish across large areas.

For advice on suitability, installation, subfloor preparation or quantity calculations, our Timberzone team is always available to help.

Specifications
  • Material: High-density acoustic rubber
  • Thickness: 4.5mm
  • Roll Size: 10m²
  • Impact Sound Reduction: Up to 26dB
  • Built-in vapour barrier for moisture protection
  • Suitable flooring types: Laminate, engineered wood, click-system
  • Ideal usage: Homes, apartments, commercial spaces, hotels
  • Installation method: Floating floor systems

Need help choosing the right underlay?

If you’re unsure which underlay is best for your project, our team can guide you based on subfloor conditions, acoustic requirements and flooring type.

We can also assist with installation guidance, moisture control advice and recommended accessories to ensure long-term flooring performance.