Acoustic Floating Floors



Sound Isolation Floor Systems encompass a wide range of resilient composite constructions designed for varying acoustical criteria. An isolated floor, commonly called an “acoustic floating” floor, is used to minimize airborne and impact-generated sound transmission through the floor/ceiling assembly. Depending on application, the acoustic floating floor may be supported on resilient pads, a continuous resilient acoustic underlayment, or spring mounts. The perimeter of the floor is isolated with a resilient isolation board to prevent sound flanking.


Concrete Acoustic Floating floors

Concrete floating slabs are used where mass is needed to boost low frequency noise reduction. This creates an airspace between a poured non-structural slab and the subfloor below. Selection of the appropriate isolation material is based on the application. Both formwork systems and “jack-up” systems using neoprene or fiberglass pads produce relatively high STC and IIC ratings when compared to thinner continuous underlayment assemblies. Where heavy impacts from sport and fitness activity are a concern, a spring lift slab floor system is often utilized.


High performance floated wood and composite floor systems

High performance floated wood and composite floor systems are used when the subfloor will not support the weight of a concrete slab, meet floor elevations or when concrete is unnecessary. While these systems do not benefit from the added mass of concrete, they are effectively employed in a wide range of applications.


Creating an airspace between the structural and isolated floors while decoupling the two floors with the appropriate resilient mount effectively controls noise transmission. Maximum effectiveness of an acoustic floating floor composite construction is achieved when the finished floor is fully isolated from the building structure and non-structural components, such as ductwork and piping. Accordingly, airborne and impact noise transmissions are greatly reduced between the room incorporating the floating floor system and other parts of the building. Additionally, acoustic floating floor systems are often used to prevent transmission of vibration and airborne noise from entering into the space in which the floating floor is installed. One such application would be the construction of floating floors for a multiplex theater adjacent to a railway. Inspired Noise Solutions acoustic floating floor systems offers the largest variety of isolation mounts to fit specific applications. These include resilient pre-compressed fiberglass pads, steel springs, and neoprene or natural rubber pads. Acoustical test data for Sound Transmission Class (STC) and Impact Insulation Class (IIC) are available for several types of isolated floor/ceiling assemblies documenting system performance.