There is an increasing trend for buildings and spaces to have multiple uses, therefore it is critical that designers consider disturbing noise and vibration frequencies and their harmonics – as well as the natural frequency modes of the floor and structure – to ensure sufficient levels of noise and vibration isolation are achieved.

Vibration control measures can be incorporated to provide vibration mitigation as well as enhance airborne and impact noise reduction. Incorporating mitigation measures for vibration or acoustic isolation is often far more cost effective than the necessary increase in size and weight of steel or concrete required to suitably stiffen a structure. As the vibration is isolated at source, the acoustic performance is also generally much higher.

CineFLOOR Acoustic Floating Floor Range

CineFLOOR was designed by our engineers as a comprehensive range of acoustic floating floor solutions for auditoriums of all shapes and sizes.

From multiplex cinemas to boutique auditorium and private viewing rooms, CineFLOOR acoustic floating floors will keep sound constrained to its source.

We know from our experience that every cinema has a unique acoustic profile, and that one size or system does not fit all. That’s why we designed four grades to reflect the most common variables.

CineSTEEL

A complete range of solutions for isolating raked seating and secondary steelwork in cinemas.

When designing an auditorium, it is critical that the acoustic performance of the cinema screen is not compromised by rigid connection to any surrounding structures.

Our CineSTEEL systems ensure that the most important secondary structure in a cinema, the raked seating, is kept totally independent of the main structure, the structural floor slab and any adjacent screens.

CineTIMBER

A niche range of solutions designed for isolating lightweight raked seating in cinemas.

CineTIMBER is primarily intended for use with lightweight raked seating structures that incorporate timber and plasterboard stadia.

CineTIMBER maximises noise and vibration isolation while keeping live-load deflection and structural ‘livelyness’ to a minimum.

Each Farrat Cine System grade uses natural rubber isolators that are manufactured under an ISO 9001 compliant quality management system and have been performance tested in UKAS and IPAC accredited laboratories.

The compounding and manufacture of our isolators is backed by over 60 years of Farrat’s research and development in elastomer science. Special care has also been taken to consider build-ability, reliability and robustness in each design to ensure that the operator’s key interests are upheld, such as acoustic performance, longevity and life cycle cost.

Regardless of the Farrat Cine System grade you choose, you’ll have the comfort of knowing that our expert engineers will be on hand to advise you every step of the way.

 

Additional Solutions for Isolating Cinemas:

 

Have a question about Isolating Cinemas?

Acoustic Isolation of Theatres & Concert Halls

Concert halls are an important and popular part of arts and leisure culture where cutting edge technologies are used to provide the best possible acoustics for the music and theatre to be performed. They tend to be constructed in urban environments to allow accessibility which can lead to challenging scenarios where externally induced noise and vibration from road, rail, general urban noise and tightly spaced venues can dramatically affect the critical acoustic experience. Vibration control may be required in a concert hall design due to;

  • Externally induced disturbing vibration from transport etc.
  • Internal noise transfer between performance, rehearsal/practice and public spaces

Acoustic Design Considerations

The principles of concert hall design are similar to those adopted in cinemas but tend to be on a much larger scale owing to the size of the auditoria and the very high acoustic requirements of the performance spaces. A modern construction method for concert halls is to build the main shell out of in-situ concrete and then construct all the noise critical areas as independent ‘boxes’ supported by high performance acoustic bearings. For large spaces such as main concert hall auditoria and studio theatres the walls and ceiling are supported by a steel frame which is supported at the base of each column by a resilient bearing. That way anything within that space (seating, stage, fly tower etc) is decoupled. Such a method provides high levels of airborne noise attenuation in each space whilst the structure borne vibration levels can be controlled through selecting an appropriate frequency dependent on the disturbing frequency and building structure design. Using steel as the internal frame also facilitates the use of longer spans and complex shapes whilst at the same time minimising weight and cost.   The two main approaches to concert hall vibration control are;

  • Full building / Base isolation  Used in concert halls around the world to prevent structure borne vibration from entering the structure.
  • Box in Box Systems –  This system offers benefit if space within the concert hall is constrained (as it often is), by isolating each internal part of the building (main concert hall, second hall, studio theatres, rehearsal studios and gyms etc) from one another.

For free technical advice, specification details or a quotation, call us now: +44 (0) 161 924 1600

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Acoustic Isolation of Bowling Alleys

Bowling Alleys typically require only one element of high performance sound insulation: a heavy concrete floating floor. Designing a floating floor for a bowling alley is a lot more involved than many other applications for the following reasons:

  • Heavy Impact Isolation: The floor needs to be designed to isolate much lower frequencies than applications requiring airborne sound insulation as a dropped bowling ball transfers a lot more low frequency vibration into a slab than any airborne sound ever could.
  • Damping: In addition to impeding the transmission of low frequency vibration caused by a dropped bowling ball, a bowling alley floating slab needs to provide additional damping to reduce unwanted vibration feedback to the players.
  • Venting: The large surface area to perimeter ratio of a bowling alley floating floor makes it one of the only applications that the often discussed “air-gap stiffening” phenomenon actually has an appreciable effect. A bowling alley slab must be designed so that the air in the cavity formed by the isolators does not become “trapped”.
    • NOTE: Due to the very low frequencies required to be isolated, lightweight floating floors are not suitable for bowling alleys. 100 mm of concrete is the minimum slab thickness, and 150 mm thickness should always be considered.

Acoustic Design Considerations

Of major importance is also utilising a system that maintains lane level over time and can perform equally well under the wide variation in loads encountered on a typical bowling alley floating slab without tilting.

Farrat Solutions for the Isolation of Bowling Alleys:

Farrat Products & Materials in application:

For free technical advice, specification details or a quotation, call us now: +44 (0) 161 924 1600

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Acoustic Isolation of Laboratories

There are many types of laboratories that require high performance sound insulation. Typically these are where sensitive machinery such as electron microscopes or coordinate measuring machines are used, however the principle arises anywhere that produces high level of noise and/or vibration, or is particularly sensitive to noise and/or vibration. Due to the fact that there is so much variability in laboratory configuration and usage, there is no one-size- fits-all solution. This is where Farrat’s wide breadth of experience is particularly useful not just in offering advice on products, installation and commissioning in these applications, but also in providing consultancy to assist the design team to ensure appropriate and cost effective solutions are selected.

Farrat Solutions for the Isolation of Laboratories:

Farrat Products & Materials in applications:

For free technical advice, specification details or a quotation, call us now: +44 (0) 161 924 1600

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Why Choose Farrat for High Performance Sound Insulation?

From concept through to specification and design, our team of specialist engineers work closely with architects, acoustic consultants and structural engineers to design bespoke systems for spaces where vibration control or high levels of sound insulation are required.

Our multi-disciplinary team encompasses mechanical, structural, acoustic and construction engineering specialists and is backed up with 50 years of technical expertise. We work with project teams to provide technical advice, specification guidance and develop creative solutions designed to provide long term and reliable performance, build-ability and value. This customer focus drives the innovation and continuous product development of our comprehensive, versatile and cutting edge product portfolio which is then rigorously tested and accredited to the latest standards. Taking care of the entire design, manufacture and installation process, we support our clients through responsive customer support, product availability, and a rapidly expanding global distribution network.

Testing, Standards & Compliance

Farrat acoustic floating floor systems have been laboratory tested in accordance with BS EN ISO 140-4 & 7:1998 at an ISO/IEC 17025:2005 UKAS Accredited Laboratory.

Our compounds conform with the requirements and testing procedures set out in BS 6177:1982 and BS EN 1337-3:2005.Full test data is available on request.

Farrat operates under an ISO 9001:2015 quality assurance system. All sound insulation systems are manufactured under this system. Farrat also operates under an ISO 14001:2015 Environmental Management Standard.

Industry Memberships

Farrat are proud to support the UK’s professional body of Acoustics, Noise and Vibration as a ‘Sponsoring Organisation’ of The Institute of Acoustics (IOA). The Institute of Acoustics is a nominated body of the Engineering Council, offering Membership to companies with substantial involvement in the field of acoustic engineering.
Find Farrat products on Riba NBS Plus Specification Software

In order to start the process, please send us the following Information:

  • Acoustic/Vibration Specification
  • Relevant Structural and Architectural Drawings
  • Relevant Loading information 

*Ideally in Excel format, provided as Dead Load, Super-imposed Dead Load and Live Load with location plan drawings. 

Ryan Arbabi   BSc(Hons) CEng MIOA Technical Director – Non-Structural Vibration Isolation Systems

E: sales@farrat.com DD: +44 (0)161 924 1600

Vincenzo Teseo Applications Engineer

E: sales@farrat.com DD: +44 (0)161 924 1600