BK Raumakustik (Böcking Kemmerling Raumakustik GmbH) plans and delivers bespoke room-acoustic solutions made from the aPerf® material: from consulting through development to turnkey installation. Head office in Neuss, Rhine/Main branch in Frankfurt. aPerf® is a sound-absorbing nonwoven made of 100 % polyester (partly recycled PET bottles), thermally and mechanically bonded without chemical binders. The material is self-supporting and can be used without a frame, is dyed throughout, ball-impact-safe per DIN 18032, OEKO-TEX Standard 100 certified and fully recyclable. Manufactured in Germany and Switzerland. From the aPerf® materials BK Raumakustik builds wall panels, ceiling rafts, desk dividers, broadband and bass absorbers, acoustic prints and industrial hall acoustics. Member of the DGNB.
WebsiteaPerf panel colour
The design-led variant of the aPerf® panel (formerly 'aPerf board colour'): an anthracite fleece core with a one-sided, through-dyed colour lamination for vivid wall and ceiling designs where acoustics become a visible part of the room concept. Mounted directly it damps broadband; with an air gap up to the highest absorption class A. Please note: with the coloured lamination the reaction-to-fire drops to class E (mechanically fixed on a mineral substrate). Where higher fire-protection requirements apply, the uncoated aPerf® panel (B-s1,d0) should be preferred.
ISO 354 – reverberation chamber· 2 variants
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αp per ISO 11654
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| Compare | Value |
|---|---|
| αw0.55 |
Absorber class: D
Distance: Direct (no gap)
