Sound insulation underlay is a rubber-based acoustic layer designed for installation beneath finished floor surfaces. It is manufactured from SBR granules, foamed rubber granules, and polyurethane adhesive, processed into a dense, flexible mat that sits between the subfloor and the finish floor covering.
The primary function is impact sound reduction. When foot traffic, equipment movement, or structural vibration transmits through a floor assembly, this underlay absorbs and dissipates energy before it travels into the building structure. The material handles a broad range of vibration frequencies, making it suitable for both residential and high-load commercial environments.
This product is compatible with wood, bamboo, PVC, vinyl, carpet, ceramic tile, and cement-based floor systems. It installs as a continuous roll layer and does not require adhesive bonding to the subfloor in most floating floor assemblies.
| Property | Value |
|---|---|
| Material Composition | SBR granules, foamed rubber granules, polyurethane adhesive |
| Thickness Range | 3 mm – 20 mm |
| Density | 500 – 700 kg/m³ |
| Hardness (Shore A) | 40 – 50A |
| Roll Width | 1 m |
| Roll Length | 10 m – 20 m |
| Color Options | Black, Colored |
| Impact Noise Reduction | 15 – 30 dB |
The underlay reduces airborne and impact noise transmission by 15–30 dB depending on thickness, density, and the floor assembly configuration. This performance range covers standard residential requirements through to commercial and sports facility applications.
SBR rubber granule construction provides consistent elastic response under dynamic load. Vibration generated by foot traffic, gym equipment, or rolling loads is absorbed within the mat layer rather than transferring into the concrete or timber subfloor below.
The foamed rubber granule component contributes to shock force dissipation. In sports facilities and training areas, this reduces peak impact loads on both the floor structure and the people using it.
The rubber matrix maintains elastic recovery under repeated compression. The material does not take permanent set under normal service loads, which means acoustic performance remains consistent over the service life of the floor assembly.
The product is manufactured using SBR granules, which are derived from recycled rubber sources. This positions it as a lower-environmental-impact option compared to virgin foam underlays.
A single product grade covers installation under wood, bamboo, PVC, vinyl, carpet, ceramic tile, and cement-based finish floors. This reduces procurement complexity on multi-zone projects.
Sound insulation underlay is used across a wide range of building types where floor-to-floor noise control is a design or regulatory consideration.
Sports Facilities and Stadiums: Installed beneath timber or PVC sports floors to reduce structure-borne noise from athletic activity and crowd movement.
Gyms and Training Centers: Provides shock absorption and vibration isolation under rubber gym flooring or wood surfaces in weight and functional training areas.
Hotels: Used in guest room and corridor floor assemblies to reduce footfall noise transfer between floors in multi-story buildings.
Residential Apartments: Standard installation in multi-story residential construction where impact sound between floors affects occupant comfort.
Offices and Commercial Buildings: Reduces noise from foot traffic and rolling loads in open-plan and corridor floor systems.
Music Classrooms and KTV Venues: Higher-thickness options provide additional acoustic separation in spaces where sound isolation between rooms is a design requirement.
Cinemas and Entertainment Facilities: Installed as part of floor assemblies where low ambient noise levels are necessary for occupant experience.
Kindergartens and Educational Facilities: Shock absorption and noise reduction properties are relevant in active learning environments with hard finish floors.
This product is compatible with wood, bamboo, PVC, vinyl, carpet, ceramic tile, and cement-based floor finishes. It functions as a decoupling layer between the subfloor and finish floor in both floating and bonded assemblies.
Impact noise is generated when a force — foot traffic, a dropped object, equipment movement — contacts a floor surface. Without isolation, this energy travels through the floor structure and radiates as sound in the space below. The rubber mat layer absorbs this energy through elastic deformation, reducing the amplitude of vibration that enters the structure.
Yes. The Shore A hardness range of 40–50A and the density range of 500–700 kg/m³ make this product suitable for sports hall and stadium floor assemblies. It provides both vibration isolation and shock absorption under dynamic athletic loads.
Yes. The product is used in hotels, offices, cinemas, and other commercial building types. Thickness and density selection should be matched to the specific load and acoustic requirements of the project.
The product is available from 3 mm to 20 mm. Thicker configurations generally provide greater impact sound reduction and shock absorption. Thickness selection depends on the floor assembly design, finish floor type, and acoustic performance target.
The product is manufactured from SBR rubber granules, which are sourced from recycled rubber, combined with foamed rubber granules and polyurethane adhesive. This composition supports projects where sustainable material selection is a procurement consideration.
OEM configurations and custom thickness options are available. Project-specific requirements can be discussed directly with the technical team.
