Sonaspray K-13 Special
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Spray-on Acoustic Decorative Finish for Noise Reverberation Control
Acoustic Reverberation
- Spray applied seamless one coat acoustic decorative finish
- Easily applied to flat or curved surfaces
- Reduction of noise reverberation
- Rain on roof noise reduction
- Thermal insulation and condensation control
- K-13 Special typically provides these features at lower installed prices than fixed panel systems.
- Build Regs. part ‘E’ & BB93 compliant, to be used to reduce reverberation.
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Carbon neutral - Low Embodied Energy - Good for the Environment - Easy Disposal - Recyclable |
SonaSpray noise reverberation reducing K-13 Special is spray applied directly to most substrates: concrete – plasterboard – GRP – steel – glass – expanded polystyrene and will maintain its fire rating. Domes – vaults – profiled – corrugated – flat – almost any shaped substrate can be sprayed with SonaSpray K-13 Special.
Available in a range of standard colours from stock SonaSpray K-13 Special can also be manufactured to the client’s colour requirement [minimum quantity applies].
SonaSpray K-13 Special is a total noise reverberation controlling system, with in-built treatment for fire and mould resistance; coloured through the full thickness of the coating. Manufacture is accredited ISO 9001:2000 certification.
SonaSpray K-13 Special was developed for installations where the standard SonaSpray K-13 surface was considered to be too coarse. It has a finer texture and is an attractive surface finish in new build and renovation projects. The excellent sound absorbing qualities of SonaSpray allows designers to utilise smaller areas for effective noise reverberation control and improved ambient sound quality. SonaSpray K-13 Special is a popular choice in a wide variety of large spaces such as, sports and other large hall facilities, school drama studios, television and sound studios, airports, railway stations, swimming pools and entertainment venues, in fact any indoor space where noise reverberation is a problem. Patented adhesives provide unequalled bond strength allowing application thickness of up to 32mm in one application (see SonaSpray K-13 for thicker applications).
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SonaSpray K-13 Special Installations:
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Throughout the construction of St. Pauls Way Community School in Tower Hamlets, London, Oscar Acoustics assisted Bouygues UK with their acoustic requirements. Nearly 3,000m2 of SonaSpray K-13 Special was applied to corridors, light wells, balconies and the activity hall resulting in easy compliance with BB93.
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Following completion of works at St. Pauls Way Comm. School, Bouygues, Operations Director, Chris Stevens expressed his thanks by letter: "Following the recent installation of 3,000m2 of SonaSpray K-13 Special to the corridors, classroom and Activity hall ceilings plus Main Sports Hall at St. Pauls Way Community School, Bouygues UK Ltd would like to thank Oscar Acoustics for their hard work in delivering a high standard of work within our program, for which speed of installation was critical. |
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For the O2 Dome SonaSpray K-13 Special in Ivory and Dark Grey was applied to the exterior façades of the Art Deco style buildings within the Dome concourse. The result is an attractive decorative finish combined with excellent noise reverberation controlling benefits, completed ahead of schedule and to the very high standards demanded by the main contractor. |
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YRM Architects’ Studio, Kings Cross, London.SonaSpray K-13 Special was applied to the pitched soffit in white, contrasting with the recently refurbished original trusses. Our experienced spray team masked and hand finished to a white trim creating a definitive edge and preventing colour migration from the beautiful Victorian timber to the new ceiling. The architects and staff of YRM now have a quiet, comfortable and less stressful environment in which to work. |
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Harpurhey Leisure Centre, Manchester Acoustics design calculations demonstrated there would be a problem with speech audibility in the pool area due to high levels of noise reverberation. Instructors of swimming lessons would find teaching very difficult and the serious problem existed of misunderstanding the |
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public address system announcements and instructions in the event of an emergency. Oscar Acoustics were employed to apply 16mm of SonaSpray K-13 Special to the soffit in white. The installation was completed in 1 week. The pool environment is reported as excellent, plus it and has the additional benefit of condensation control. |
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Technical Information
Acoustic DATA:
Where noise reverberation is a problem SonaSpray K-13 special can be tailored to meet your specific project acoustic need. There is a choice of finish, you may select texture and colour and acoustic performance. SonaSpray K-13 Special can be applied at variable thickness and variable area to provide a designed acoustic ambience. It is spray applied to the full thickness in one application.
SonaSpray K-13 Special absorption coefficients
| Thickness in mm | 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | NRC |
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| 12.5mm | 0.09 | 0.22 | 0.58 | 0.79 | 0.88 | 1.04 | 0.65 |
| 16mm | 0.10 | 0.35 | 0.83 | 0.88 | 0.99 | 1.04 | 0.75 |
| 19mm | 0.10 | 0.35 | 0.87 | 0.87 | 1.03 | 1.07 | 0.80 |
| 25mm | 0.14 | 0.54 | 0.93 | 1.03 | 1.08 | 1.05 | 0.90 |
| 32mm | 0.18 | 0.60 | 0.98 | 1.03 | 1.04 | 1.05 | 0.90 |
Test DATA certified by TNO Technical University Delft NL. Tests were on a solid backing, a panel backing with air space behind the panel will change absorption; normally there is improved absorption at low frequency.
Environmental:
SonaSpray K-13 achieves M1 certification for Building Materials emissions. This is the best possible classification. Click here for certificate.
Thermal DATA:
SonaSpray insulates by creating dead air spaces macroscopically between and within the hollow cellulose fibres. Testing on actual buildings demonstrates that sprayed insulation outperforms fibreglass bats that are mechanically retained. 100mm thick U = 0.32 W/m2K
Mass:
Dry Weight of SonaSpray Special K-13 per 5mm thickness = 0.45 kg/m2
Dry Weight of SonaSpray K-13 Special per 25mm thickness = 2.25 kg/m2
Bonding to Substrate:
SonaSpray K-13 Special can be applied to virtually any substrate; some surfaces may need priming to control suction. Old surfaces may need a barrier coating to prevent staining from leaching out contaminants while the surface is wet. Fully cured SonaSpray K-13 Special will improve strength as well as reducing noise reverberation.
Condensation Control:
For areas such as indoor pools and ice arenas, SonaSpray K-13 Special aids in not only noise reverberation control but condensation control and cold bridging. The proper combination of SonaSpray K-13 Special and ventilation prevents condensation on metal, concrete and other similar surfaces. SonaSpray K-13 Special actually reduces ventilation requirements, saving in both the ventilation equipment cost and operating costs.
RH Control:
SonaSpray K-13 Special is a natural humidity moderator. At times of increasing humidity SonaSpray K-13 Special will absorb large amounts of water vapour. When the humidity drops SonaSpray K-13 Special will exhale water vapour and maintain a balance. This characteristic promotes a healthy atmosphere.
Durability:
The adhesive used with SonaSpray K-13 Special provides a strong, durable and resilient bond. When fully cured, surface strength of old plaster will typically improve.
Where to use:
SonaSpray K-13 Special can be quickly and effectively applied to any prepared surface and construction configuration where noise reverberation is a problem. This allows minimum working down time in existing structures with abilities to meet critical deadlines in new construction. SonaSpray K-13 Special has a medium surface texture and is suited to reducing noise reverberation in large rooms and halls.
Other SonaSpray products offer a finer surface texture.
Fire Performance Ratings:
UK Fire test by Warrington Fire Research:
Class 1 to BS476 Part 7
Class 0 to BS476 Part 6
USA – Factory Mutual Standards research corp. approvals: category I, II, III, IV and V:
Category I: As an interior finish material of low fire hazard [class I building material] over non-combustible surfaces not requiring automatic sprinkler protection in and of itself.
Category II: As a protective coating to delay the ignition and reduce the surface burn rate of combustible wood and cellulosic fibre building material.
Category III: As a protective coating to delay the ignition and reduce the surface burn rate of low melting point, combustible cellular plastic building materials and to protect their dimensional stability for a brief period.
Category IV: Ass a protective coating for building structural steel to supplement automatic sprinkles protection in preventing structural failure temperatures of the steel in high fire hazard occupancies.
Category V: As a protective coating to the underside of a Class II insulated steel roof deck construction to sufficiently lower the rate of fuel contribution from the Class II deck components to qualify the construction as Class I so allowing automatic sprinkler protection to be omitted under Factory Mutuals Standards .
Maintenance:
SonaSpray K-13 Special can be over-painted (consult Oscar Acoustics technical department before painting as noise reverberation controlling properties can be significantly reduced if applied incorrectly), or applied with additional coats of SonaSpray. Small areas of damage can be repaired by hand.
If SonaSpray K-13 Special is disturbed or damaged so that fibre is released into the atmosphere, the resulting contamination is harmless. Maintenance work can be undertaken while the building is occupied. Please refer to COSHH data for detailed product analysis.
Click here to compare K-13 Special with other noise reverberation controlling finishes.
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Click here to request a brochure or call us on 01474 873122 |
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SonaSpray noise reverberation control is manufactured by ICC, Houston, Tx
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