Ceiling raft LMD-DS 320
Aobj 0.70–3.50 m² at 1 kHz
CeilingFree-hanging
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Manufacturer
Lindner Group
Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.
Description
Metal ceiling raft as an individual module suspended freely in the room, with tool-free inspection access. Between the rafts, the structural shell remains accessible for luminaires and services. The absorption results from perforation, acoustic fleece and an optional acoustic insert. Recycled content 24.6 percent.
Technical data
Material: Galvanised steel sheet
Surface: Powder coating COLOURline, MOODline deep matt, ARTline decor, GRAPHICline digital printing
Up to fire class: A2-s1,d0
Certifications: CE per EN 13964, EPD per EN 15804, FDES in the INIES database, TAIM Technical Manual for Metal Ceilings, VOC emission class A+, Indoor Air Comfort Gold, Oeko-Tex Standard 100 (Acustica acoustic insert)
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 14 variants
Aobj
3.50 m²
at 1 kHz
Frequency values
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| Compare | Value | ||||
|---|---|---|---|---|---|
| Rd 1.6 - 25 | 400 mm | ceiling raft 2400 x 1200 mm | 20 mm Acustica | Aobj3.50m² | |
| Rd 1.6 - 25 | 200 mm | ceiling raft 2400 x 1200 mm | 20 mm Acustica | Aobj3.10m² | |
| Rd 1.6 - 25 | 400 mm | ceiling raft 1800 x 1200 mm | 20 mm Acustica | Aobj2.60m² | |
| Rg 0.8 - 5 | 200 mm | ceiling raft 2400 x 1200 mm | 20 mm Insula B2 / Acustica | Aobj2.50m² | |
| Rd 1.6 - 25 | 200 mm | ceiling raft 1800 x 1200 mm | 20 mm Acustica | Aobj2.40m² | |
| Rg 0.8 - 5 | 200 mm | ceiling raft 2400 x 1200 mm | — | Aobj2.00m² | |
| Rd 1.6 - 25 | 400 mm | ceiling raft 1200 x 1200 mm | 20 mm Acustica | Aobj1.80m² | |
| Rd 1.6 - 25 | 200 mm | ceiling raft 2400 x 1200 mm | — | Aobj1.70m² | |
| Rd 1.6 - 25 | 200 mm | ceiling raft 1200 x 1200 mm | 20 mm Acustica | Aobj1.60m² | |
| Rd 1.6 - 25 | 400 mm | ceiling raft 2400 x 1200 mm | — | Aobj1.50m² | |
| Rg 0.8 - 5 | 200 mm | ceiling raft 1200 x 1200 mm | 20 mm Insula B2 / Acustica | Aobj1.40m² | |
| Rg 0.8 - 5 | 200 mm | ceiling raft 1200 x 1200 mm | — | Aobj1.10m² | |
| Rd 1.6 - 25 | 200 mm | ceiling raft 1200 x 1200 mm | — | Aobj0.90m² | |
| Rd 1.6 - 25 | 400 mm | ceiling raft 1200 x 1200 mm | — | Aobj0.70m² |
Test report: H231016P1/1b_rev00
Institute: GiB mbH, Arnstorf
Measurement date: 16/10/2023
Room volume: 208.5 m³
Test setup: ceiling raft 2400 x 1200 mm
Absorber: 20 mm Acustica
Measured values as a table (14 measurements)
| Build-up | αw | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rd 1.6 - 25 · 400 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | 0.10 | 0.50 | 0.60 | 0.70 | 1.00 | 1.00 | 0.80 | 0.50 | 0.70 | 0.80 | 0.70 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | 0.90 | 1.00 |
| Rd 1.6 - 25 · 200 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | – | – | 0.90 | 1.10 | 1.40 | 1.70 | 1.80 | 1.90 | 1.70 | 1.60 | 1.80 | 1.80 | 1.70 | 1.80 | 1.80 | 1.80 | 1.80 |
| Rd 1.6 - 25 · 200 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | – | 1.60 | 1.70 | 2.00 | 2.50 | 3.30 | 3.40 | 3.50 | 3.30 | 3.10 | 3.50 | 3.60 | 3.30 | 3.30 | 3.20 | 3.20 | 3.20 |
| Rd 1.6 - 25 · 400 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | 0.40 | 0.60 | 1.00 | 1.50 | 1.90 | 2.00 | 1.50 | 1.10 | 1.20 | 1.50 | 1.50 | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | 1.70 | 1.70 |
| Rg 0.8 - 5 · 200 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | 0.10 | 0.30 | 0.50 | 0.70 | 1.00 | 1.30 | 1.40 | 1.60 | 1.60 | 1.40 | 1.40 | 1.70 | 1.60 | 1.60 | 1.60 | 1.50 | 1.30 | 1.10 |
| Rg 0.8 - 5 · 200 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | 0.30 | 0.60 | 0.90 | 1.30 | 1.90 | 2.30 | 2.60 | 3.10 | 3.00 | 2.70 | 2.50 | 3.00 | 3.10 | 3.10 | 3.00 | 2.90 | 2.80 | 2.80 |
| Rg 0.8 - 5 · 200 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | 0.40 | 0.70 | 0.90 | 1.40 | 1.90 | 2.40 | 2.40 | 2.60 | 2.70 | 2.30 | 2.00 | 2.20 | 2.30 | 2.10 | 2.20 | 2.20 | 2.40 | 2.50 |
| Rg 0.8 - 5 · 200 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | 0.20 | 0.40 | 0.60 | 0.80 | 0.90 | 1.20 | 1.30 | 1.40 | 1.40 | 1.20 | 1.10 | 1.20 | 1.10 | 1.10 | 1.20 | 1.20 | 1.30 | 1.40 |
| Rd 1.6 - 25 · 200 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | – | – | – | 1.20 | 1.50 | 2.00 | 2.30 | 2.50 | 2.10 | 1.70 | 1.80 | 2.10 | 1.80 | 1.90 | 1.90 | 1.80 | 1.90 |
| Rd 1.6 - 25 · 200 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | – | 1.20 | 1.40 | 1.60 | 1.60 | 2.50 | 2.70 | 2.80 | 2.50 | 2.40 | 2.70 | 2.70 | 2.60 | 2.60 | 2.40 | 2.40 | 2.60 |
| Rd 1.6 - 25 · 400 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | 1.10 | 1.70 | 1.80 | 2.00 | 1.80 | 2.20 | 2.00 | 2.60 | 2.70 | 2.60 | 2.80 | 2.70 | 2.80 | 2.80 | 2.80 | 2.80 | 3.10 |
| Rd 1.6 - 25 · 200 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | – | – | 0.60 | 0.70 | 0.90 | 1.00 | 1.20 | 1.30 | 1.10 | 0.90 | 1.10 | 1.10 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Rd 1.6 - 25 · 400 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | 1.10 | 2.40 | 2.40 | 2.40 | 2.40 | 2.80 | 2.60 | 3.30 | 3.50 | 3.50 | 3.50 | 3.60 | 3.60 | 3.70 | 3.60 | 3.70 | 4.00 |
| Rd 1.6 - 25 · 400 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | – | 0.90 | 1.20 | 1.30 | 1.40 | 1.40 | 1.30 | 1.60 | 1.80 | 1.80 | 1.90 | 1.90 | 1.80 | 2.00 | 2.00 | 1.90 | 2.10 |
Measured values as a table (14 measurements)
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