Acoustic IndexAcoustic Index

B11 Wall of Silence PET

Wall of Silence PET

Sabins/unit 41–46 at 1 kHz

EPD availableFreestanding
With a free account

Manufacturer

B11

B11 develops and manufactures lightweight, free-standing and suspended room-acoustic objects in Edling, Bavaria. Founded in 2011 by Dirk Huber, the brand stands for distinctive, design-led acoustic solutions „made in Bavaria“. The core range is based on melamine resin foam (Basotect) with a textile cover (Camira Nexus/Lucia): the TOWER OF SILENCE acoustic column, the CUBE, the square WING, the rotatable ROTARY WALL and the suspended FLYING WALL room divider. B11 also offers a PET line made from recycled ARCHISONIC Felt (Impact Acoustic) and the through-dyed WING UNICOLOR. Sound absorption is documented per product — via accredited measurements (Müller-BBM, University of Stuttgart) or manufacturer data sheets; free-standing single objects as the equivalent absorption area A per object.

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Documents

EPDFire protectionDatasheet

Description

The WALL OF SILENCE PET is the free-standing partition of the PET line — recycled felt, as a calm surface or a perforated design element. It separates and calms areas without closing the room.

Technical data

Material: Recycled polyester acoustic felt (ARCHISONIC Felt)
Surface: Felt surface, milled cut patterns available
Fire class (EN 13501-1): B-s1,d0 · ARCHISONIC Felt — 0.94 in tested: B-s1,d0 (EN 13501-1)
Application: Office, reception, hospitality
Certifications: EPD (EN 15804), Cradle-to-Cradle, EcoBau; colour fastness class 6 (ISO 105-B02)
Colours: 36 standard colours (ARCHISONIC Felt, Colour Hive)

Measurement data

Sound absorption

Reverberation chamber (ASTM C423 / ISO 354)· 2 variants

Sabins/unit
46
at 1 kHz

Frequency values

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CompareValue
Motus 71 × 71 inSabins/unit46
Motus 71 × 63 inSabins/unit41

Institute: Impact Acoustic / B11 (manufacturer data)

Test setup: Motus 71 × 71 in

Terms of use
Measured values as a table (2 measurements)
B11 Wall of Silence PET: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upNRC100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
0.94 in · Motus 71 × 63 in (sabins/unit)–8.71416242422272933374144474750495050
0.94 in · Motus 71 × 71 in (sabins/unit)–9.81518262724303237424650525357555757
Measured values as a table (2 measurements)

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