Mechanical Supplies

Interior Finish Acoustical Products

About

Kinetics Model KNP panel absorbers and perforated metal panels, along with fabric-wrapped panels, baffles and clouds that control reverberation and speech clarity inside a finished space. Absorption is published as an NRC and as octave-band coefficients, so the specifier can target the frequencies actually causing the problem rather than buying a single headline number.

Application

Used in auditoria, mosques, lecture halls, open-plan offices, restaurants and atria, anywhere hard glass, stone and plasterboard surfaces make a room loud rather than merely noisy. Class A rated products with a Class 1 flame spread rating are required in escape routes and assembly occupancies, which usually decides the facing material before the acoustic target does.

Standards & Reference 5 cited

ASTM C423 (NRC)
Sound absorption measured in a reverberation room, reported as the Noise Reduction Coefficient. Absorption, not insulation: how much sound a surface soaks up rather than blocks.
ASTM E84 (Class A)
Surface burning characteristics: the flame spread index and smoke developed index a material is classified by. Class A is the usual requirement in an occupied building.
ISO 11654
The international rating of sound absorbers, giving the single-figure αw used in European acoustic specifications.

Also citedASTM E795ISO 354

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