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Soundproof Underlays

A soundproof underlay is a material layer installed underneath flooring to reduce noise transmission between floors. It helps reduce impact noise (e.g., footsteps) and airborne noise (e.g., voices, music) from travelling through the floor to other rooms.

Soundproof underlays reduce noise by absorbing sound vibrations and isolating the floor from the subfloor. They are typically made of dense, resilient materials like mass-loaded vinyl, which blocks airborne sound waves, and high-grade dense foam, which cushions against impact noise.

Soundproof underlays can reduce two main types of noise:

• Impact noise: Sounds generated by direct contact with the floor, like footsteps, dropped objects, or furniture movement.
• Airborne noise: Sounds that travel through the air, such as conversations, TV, or music.

Yes, soundproof underlays can be used with various types of flooring, including:

• Hardwood and laminate: These benefit from underlays that cushion impact noise.
• Carpet: Underlays enhance comfort and add extra soundproofing.
• Tiles: These require specific underlays, usually more rigid and moisture-resistant.
• Vinyl: Often needs thinner underlays with good acoustic properties.

The thickness of a soundproof underlay varies depending on the level of soundproofing required and the type of flooring. Standard thicknesses range from 3mm to 15mm, with thicker underlays generally offering better sound reduction.

Yes, soundproof underlays can significantly reduce noise transmission, particularly impact noise from upstairs neighbours. They create a barrier between the floor and the structure, absorbing vibrations and reducing sound travel. Acoustic underlays will also reduce airborne sound transfer between neighbouring properties.

Soundproof underlays can help meet sound insulation standards, particularly for new builds and conversions. They assist in complying with Part E of the Building Regulations in the UK, which sets minimum standards for airborne and impact noise insulation between dwellings.

Soundproof underlays are designed for easy DIY installation. However, professional installation may be recommended for more complex projects, particularly those requiring specific soundproofing standards (e.g., Part E compliance).