Manufacturer

LIGNOTREND Produktions GmbH

LIGNOTREND fertigt in Weilheim-Bannholz (Schwarzwald) Brettsperrholz-Bauelemente und Echtholz-Akustikpaneele. Im Akustiksortiment LIGNO® Akustik light, Sport und home werden Sichtoberflächen aus heimischem Nadel- und Laubholz mit integrierten Holzweichfaser-Absorbern kombiniert. Alle Akustikpaneele sind nach DIN EN ISO 354 / DIN EN ISO 11654 geprüft (über 100 BAE-Berichte), nach Europäischer Technischer Bewertung ETA-21/0360 (ETA-Danmark) sowie der deutschen allgemeinen bauaufsichtlichen Zulassung Z-9.1-555 zugelassen. Nachhaltigkeitsnachweise: natureplus 0211-0606-014-1, PEFC/04-31-2893, QNG-Konformitätsbescheinigung, IBR-Prüfsiegel (Institut für Baubiologie Rosenheim), DGNB Navigator Codes OZ5NI5 / D06GD.

Website

LIGNO® Akustik light Ceiling Raft

LIGNO Akustik light Ceiling Raft

Free-hanging

Description

LIGNO® Akustik ceiling rafts are free-hanging acoustic elements made from real wood that take effect exactly where they are needed most. Instead of cladding an entire ceiling, the rafts float as design islands above individual zones in the room. They are typically used above workstations in open-space offices, above meeting and conference tables, in reception areas, bistros, and above dining tables in upscale residential construction. The rafts reduce reverberation precisely where people talk to each other, noticeably improving speech intelligibility and creating a calmer acoustic in open floor plans. Structurally, the ceiling rafts follow the LIGNO® principle: a real wood surface with an integrated wood-fibre absorber as standard, without MDF. The rafts can be combined in different formats and wood species, blending into both restrained office landscapes and more expressive interior architectures.

Technical data

Material: Cross-laminated timber (CLT) 3S_33 / 3G_33 / 3C_33 / 3S_39 with a wood-fibre absorber in the middle layer
Up to fire class: D-s2,d0 — D-s2-d0 per ETA-21/0360
Application: Targeted room acoustics above workstations, dining tables, conference rooms, lounges, restaurants
Certifications: PEFC/04-31-2893, IBR test seal, DGNB Navigator OZ5NI5 / D06GD, ETA-21/0360

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 4 variants

Choose mounting setup

αw
0.70

Frequency values

αp per ISO 11654

f (Hz)1252505001k2k4k
αp0.200.500.650.750.850.75

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αw0.70
αw0.60

Absorber class: C

Test report: TD LIGNO Akustik light Seite 42 (BAE-getestet)

NRC: 0.70

Institute: Lignotrend-Datenblatt-Deklaration (BAE Fiedler Hallraum Wächtersbach)

Measurement date: 2025-07-28

Absorber: without additional insulation

Distance: Suspension 200 mm

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