Acoustic Underlay

Acoustic Floor Underlay for Impact Sound Insulation

SR100.00SR50.00

AcouStick Acoustic Underlay is a resilient recycled SBR rubber layer installed over concrete slabs and beneath the final floor finish to reduce impact sound transmission between floors.

This acoustic floor underlay provides a resilient layer beneath ceramic, wood, vinyl, and laminate flooring, helping reduce footstep noise and improve acoustic comfort in multi-storey buildings. Available in 3 mm and 5 mm thicknesses, it is designed for residential, hospitality, commercial, healthcare, and educational applications.

Why Choose Acoustic Underlay?

Impact Sound Reduction

The resilient SBR rubber layer helps reduce impact noise such as footsteps and other floor impacts transmitted through the building structure.

Airborne Sound Insulation

The underlay is primarily an impact sound solution. Airborne sound insulation between floors is governed mainly by the mass and construction of the structural slab and any ceiling below, and a thin resilient underlay makes only a limited contribution.

Recycled SBR Rubber

Manufactured from recycled SBR rubber, providing a resilient acoustic layer for modern acoustic flooring applications.

High Compressive Load Resistance

The material is designed to withstand compressive loads beneath finished flooring systems while maintaining its resilient properties.

Compatible with Multiple Floor Finishes

The impact sound underlay can be used beneath ceramic tiles, wood, vinyl, and laminate flooring, subject to the requirements of the complete floor assembly.

Quick Installation

The underlay is installed over a suitable concrete slab before the final floor finish, providing a practical solution for new construction and renovation projects.

How Does Acoustic Underlay Work?

Acoustic underlay creates a resilient separation between the structural slab and the finished floor.

When footsteps or other impacts occur on the floor, vibration can travel through the floor structure and transmit sound into the room below. The resilient SBR layer helps reduce the transfer of impact energy between the finished floor and structural slab.

Floor Impact → Finished Floor → Acoustic Underlay → Structural Slab → Reduced Impact Transmission

The final acoustic performance depends on the underlay thickness, floor finish, structural slab, installation method, and complete floor assembly.

Acoustic Performance

AcouStick Acoustic Underlay is designed to improve impact sound insulation and forms part of the overall sound insulation performance of the floor assembly.

Acoustic Parameter

Typical Specification

STC — 3 mm, Ceramic (tested assembly)

52

IIC — 3 mm, Ceramic (tested assembly)

51

ΔIIC — 3 mm, Ceramic

20

ΔIIC — 3 mm, Vinyl

24

Actual acoustic performance depends on the complete floor construction, including the structural slab, floor finish, underlay thickness, installation method, and other layers within the assembly.

Acoustic Underlay Applications

Acoustic underlay is suitable for multi-storey buildings where impact sound transmission between floors needs to be controlled.

Residential Apartments

Suitable for apartment floors where footstep and impact noise between neighbouring units needs to be reduced.

Hotels

Provides an acoustic layer beneath selected hotel flooring systems to help improve impact sound insulation between guest rooms and occupied spaces.

Offices

Can be incorporated into office floor assemblies where improved acoustic comfort and floor soundproofing are required.

Hospitals & Healthcare

Suitable for selected healthcare environments where impact noise reduction and durable floor construction are important.

Schools & Educational Facilities

Helps control footstep and impact noise between classrooms, corridors, and occupied spaces.

Multi-Storey Buildings

Suitable for residential, commercial, hospitality, and institutional buildings where acoustic separation between floors is required.

Technical Specifications

Specification

Available / Typical Value

Material

Recycled SBR Rubber

Thickness

3 mm / 5 mm

Density

700 kg/m³

Tensile Strength

0.2–0.3 MPa

Elongation at Break

18–29%

Tear Strength

3.1–3.6 kN/m

Shore A Hardness

56

Temperature Range

-25 °C to 105 °C

STC — 3 mm, Ceramic (tested assembly)

52

IIC — 3 mm, Ceramic (tested assembly)

51

ΔIIC — 3 mm, Ceramic

20

ΔIIC — 3 mm, Vinyl

24

Standards

ASTM E90, E492, E2179 / ISO 10140-2, 10140-3

Acoustic Underlay Thickness & Flooring Options

Our acoustic floor underlay is available in 3 mm and 5 mm configurations to suit different floor construction requirements.

3 mm Acoustic Underlay

The 3 mm configuration provides a thin resilient layer beneath the final floor finish while offering published acoustic performance for selected ceramic and vinyl floor assemblies.

5 mm Acoustic Underlay

The 5 mm configuration provides a thicker resilient layer where the floor design requires additional material thickness.

Compatible Floor Finishes

AcouStick Acoustic Underlay can be incorporated beneath:

  • Ceramic tiles

  • Wood flooring

  • Vinyl flooring

  • Laminate flooring

The correct installation method should be determined according to the selected floor finish and complete floor assembly.

Acoustic Underlay for Floor Soundproofing

Acoustic underlay is primarily used to improve impact sound insulation within floor assemblies.

It is particularly useful where the project requires a relatively thin acoustic layer beneath the final flooring without constructing a full structural floating floor.

For projects involving significant low-frequency vibration, heavy impact sources, or demanding structural isolation requirements, a structural floating floor system may be more appropriate depending on the application.

Acoustic Underlay Price in Saudi Arabia

The cost of acoustic underlay depends on several factors, including:

  • Underlay thickness

  • Required floor area

  • Selected floor finish

  • Structural slab construction

  • Required acoustic performance

  • Project quantity

  • Installation requirements

Because floor constructions vary from project to project, AcouStick provides project-based pricing for acoustic underlay in Saudi Arabia.

Send us your floor area, drawings, specifications, required quantity, or flooring type to receive a quotation based on your project.

Request a Project Price →

Frequently Asked Questions

What is acoustic underlay?

Acoustic underlay is a resilient layer installed between the structural floor and finished flooring to help reduce impact sound transmission between floors.

How does acoustic floor underlay reduce impact noise?

The resilient SBR rubber layer helps decouple the finished floor from the structural slab, reducing the amount of impact energy transferred through the floor structure.

What is the IIC rating of this acoustic underlay?

The specified 3 mm configuration achieved an IIC of 51 in the tested floor assembly with ceramic flooring. The actual acoustic rating depends on the structural slab, the complete floor assembly and the applicable test configuration.

What is the difference between acoustic underlay and a floating floor?

Acoustic underlay is a resilient layer installed beneath the final floor finish, while a structural floating floor uses a more substantial isolated floor construction. The appropriate solution depends on the required acoustic and structural isolation performance.

What flooring can be installed over acoustic underlay?

The underlay can be used beneath ceramic, wood, vinyl, and laminate flooring, subject to the requirements of the selected flooring system and installation method.

How much does acoustic underlay cost in Saudi Arabia?

The price depends on thickness, floor area, flooring type, acoustic requirements, quantity, and installation conditions. AcouStick provides project-specific pricing based on the required floor assembly.

Need Acoustic Underlay for Your Project?

Send us your floor area, floor finish, drawings, acoustic requirements, or project details and our acoustic engineering team can recommend a suitable acoustic flooring configuration and provide project-based pricing.

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Request a Quote & Purchase

Interested in this product? Contact our team to discuss your requirements, confirm availability, and request a quotation.