Acoustic Rubber Underlay Guide: Reducing Noise in Floors with FLOORIN

Acoustic rubber underlay is one of the most effective ways to reduce impact noise and improve sound insulation in floors. FLOORIN Acoustic Rubber Underlay is a high-performance solution designed for under-screed applications, helping create quieter, more comfortable living and working spaces.

In this guide, we explain how acoustic underlay works, when to use it, and how to choose the right thickness for your project.

What is acoustic rubber underlay?

Acoustic rubber underlay is a dense, flexible material installed beneath flooring systems or screeds to reduce sound transmission between floors.

It works by:

• Absorbing impact vibrations (e.g. footsteps)
• Reducing airborne sound transfer
• Isolating the floor structure from the building

This makes it a key component in modern flooring systems, particularly in apartments, offices, and multi-storey buildings.

What is FLOORIN acoustic underlay used for?

FLOORIN Acoustic Rubber Underlay is designed for under-screed applications, including:

• Floating screeds
• Concrete slab floors
• Timber subfloors

It is commonly used in:

• Flats and apartments
• Residential homes
• Offices
• Commercial buildings

👉 View our acoustic rubber underlay range

Why use acoustic rubber underlay?

Reduce impact noise

Helps minimise noise from footsteps, movement, and dropped objects.

Improve airborne sound insulation

Reduces sound travelling between rooms and floors.

Meet building requirements

Supports compliance with sound insulation standards in modern construction.

Protect floor structure

High elasticity helps absorb movement and protect expansion joints.

Key benefits of FLOORIN Acoustic Rubber Underlay

• Excellent impact and airborne noise reduction
• High compressive strength for long-term stability
• Maintains thickness under heavy loads (minimal creep)
• Suitable for underfloor heating systems
• Moisture and mildew resistant
• Easy and cost-effective to install
• Environmentally friendly (zero ODP and zero GWP)

FLOORIN is designed to retain performance over time, even under sustained load conditions.

What thickness acoustic underlay do you need?

Choosing the right thickness depends on your acoustic requirements:

3mm underlay

• Entry-level sound reduction
• Suitable for minimal build-up floors
• Ideal for light residential use

6mm underlay

• Balanced acoustic performance
• Suitable for most homes and commercial spaces
• Most popular option

10mm underlay

• Maximum sound insulation
• Ideal for apartments or high-spec projects
• Best for reducing impact noise

👉 Shop all acoustic underlay thickness options

How effective is acoustic rubber underlay?

Performance varies by thickness, but typical results include:

• Noticeable reduction in footstep noise
• Improved acoustic comfort between floors
• Enhanced overall building sound insulation

Thicker underlays generally provide better impact sound reduction.

Is acoustic underlay suitable for underfloor heating?

Yes. FLOORIN Acoustic Rubber Underlay is compatible with underfloor heating systems, maintaining performance without compromising heat transfer.

Where should acoustic underlay be installed?

Acoustic rubber underlay is typically installed:

• Beneath screed layers
• Between the structural floor and finished flooring
• Across entire floor areas for consistent performance

Correct installation is key to achieving the best acoustic results.

Why choose FLOORIN acoustic underlay?

FLOORIN offers a reliable, cost-effective solution for improving floor acoustics without compromising structural performance. Its combination of durability, flexibility, and sound insulation makes it suitable for a wide range of projects.

Shop FLOORIN Acoustic Rubber Underlay

Browse our full range of FLOORIN Acoustic Rubber Underlay to find the right thickness for your project. Whether you’re working on a home renovation or a commercial build, FLOORIN provides dependable acoustic performance.