LinePerf®
LinePerf
NRC 0.70–1.05
Manufacturer
BK Raumakustik
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.
Description
LinePerf® is a linear acoustic panel: a black aPerf® polyester carrier board with a natural oak decor face and milled grooves for a slatted look. It is used on walls and ceilings in spaces such as meeting rooms and home cinemas and comes in three profile widths. The panels mount on rebate battens or rails, optionally with a bass trap insert behind them. Custom versions with other aPerf® base colors and decors or a thicker carrier board can be produced.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 9 variants
Choose slat profile
Frequency values
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| Compare | Value | |
|---|---|---|
| Overall build-up 3.1 in + 2.4 in bass insert | NRC1.05 | |
| Overall build-up 2 in + 1.2 in bass insert | NRC0.95 | |
| Overall build-up 2 in | NRC0.70 |
NRC: 1.05 (derived from ISO 354 lab data)
Institute: Müller-BBM Building Solutions GmbH
Measured values as a table (9 measurements)
| Build-up | NRC | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profile 13/4 · Overall build-up 2 in | 0.70 | 0.03 | 0.06 | 0.11 | 0.19 | 0.23 | 0.36 | 0.49 | 0.65 | 0.79 | 0.96 | 1.00 | 1.03 | 1.02 | 1.01 | 1.01 | 1.01 | 1.01 | 0.93 |
| Profile 13/4 · Overall build-up 2 in + 1.2 in bass insert | 0.95 | 0.11 | 0.18 | 0.33 | 0.55 | 0.68 | 0.85 | 0.93 | 1.00 | 1.02 | 1.03 | 1.05 | 1.05 | 1.04 | 1.04 | 1.05 | 1.04 | 1.02 | 0.92 |
| Profile 13/4 · Overall build-up 3.1 in + 2.4 in bass insert | 1.05 | 0.30 | 0.46 | 0.74 | 0.92 | 1.07 | 1.13 | 1.10 | 1.06 | 1.05 | 1.03 | 1.01 | 1.03 | 1.04 | 1.05 | 1.06 | 1.05 | 0.99 | 0.97 |
| Profile 28/4 · Overall build-up 2 in | 0.75 | 0.05 | 0.06 | 0.14 | 0.25 | 0.31 | 0.46 | 0.65 | 0.82 | 0.95 | 1.06 | 1.04 | 1.02 | 0.95 | 0.89 | 0.83 | 0.77 | 0.71 | 0.59 |
| Profile 28/4 · Overall build-up 2 in + 1.2 in bass insert | 0.95 | 0.14 | 0.22 | 0.39 | 0.63 | 0.77 | 0.93 | 1.00 | 1.07 | 1.06 | 1.04 | 0.99 | 1.00 | 0.96 | 0.92 | 0.86 | 0.79 | 0.69 | 0.58 |
| Profile 28/4 · Overall build-up 3.1 in + 2.4 in bass insert | 1.00 | 0.34 | 0.52 | 0.78 | 0.95 | 1.09 | 1.13 | 1.08 | 1.03 | 1.03 | 1.00 | 0.95 | 0.98 | 0.99 | 0.96 | 0.88 | 0.79 | 0.69 | 0.60 |
| Profile 26/13 · Overall build-up 2 in | 0.75 | 0.04 | 0.07 | 0.12 | 0.23 | 0.28 | 0.43 | 0.59 | 0.74 | 0.87 | 1.02 | 1.04 | 1.04 | 1.02 | 0.99 | 0.98 | 0.95 | 0.92 | 0.80 |
| Profile 26/13 · Overall build-up 2 in + 1.2 in bass insert | 0.95 | 0.13 | 0.20 | 0.37 | 0.61 | 0.75 | 0.90 | 0.96 | 1.04 | 1.03 | 1.04 | 1.03 | 1.03 | 1.02 | 1.02 | 1.02 | 0.98 | 0.93 | 0.81 |
| Profile 26/13 · Overall build-up 3.1 in + 2.4 in bass insert | 1.05 | 0.34 | 0.49 | 0.77 | 0.95 | 1.08 | 1.11 | 1.07 | 1.03 | 1.04 | 1.00 | 0.99 | 1.00 | 1.02 | 1.04 | 1.02 | 0.97 | 0.92 | 0.82 |
Measured values as a table (9 measurements)
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