Manufacturer
Lindner Group
Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.
MUTE+ cover ceiling raft
Description
Ceiling raft with an aluminium frame, fabric covering of polyester or wool and an additional acoustic insert. Free of mineral fibres and allergy-friendly, 100 percent recyclable and reusable. The frame sits concealed behind the covering.
Technical data
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 12 variants
Frequency values
Aobj per ISO 354 · third-octave band (m²)
| f (Hz) | 125 | 160 | 200 | 250 | 315 | 400 |
|---|---|---|---|---|---|---|
| Aobj | 1.50 | 1.90 | 2.00 | 2.40 | 2.40 | 2.90 |
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| Compare | Value | ||
|---|---|---|---|
| 2.4 in | 17 in | Aobj4.30m² | |
| 2.4 in | 8.7 in | Aobj3.80m² | |
| 2.4 in | 17 in | Aobj3.30m² | |
| 2.4 in | 10 in | Aobj3.00m² | |
| 2.4 in | 8.7 in | Aobj3.00m² | |
| 1.8 in | 9.6 in | Aobj2.80m² | |
| 2.4 in | 10 in | Aobj2.30m² | |
| 2.4 in | 17 in | Aobj2.20m² | |
| 1.8 in | 9.6 in | Aobj2.10m² | |
| 2.4 in | 8.7 in | Aobj2.10m² | |
| 1.8 in | 9.6 in | Aobj1.60m² | |
| 2.4 in | 10 in | Aobj1.60m² |
Test report: H231016P1/10f_rev01
Institute: GiB mbH, Arnstorf
Room volume: 7,363 cu ft
Absorber: 1 in Calma
Measured values as a table (12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 45 mm · 245 mm · ceiling raft 1500 x 1000 mm (Aobj, m²) | – | 0.10 | 0.30 | 0.70 | 1.00 | 1.20 | 1.40 | 1.70 | 1.80 | 1.90 | 2.00 | 2.10 | 2.10 | 2.00 | 2.00 | 1.90 | 1.90 | 1.80 | 1.80 |
| 45 mm · 245 mm · ceiling raft 2000 x 1000 mm (Aobj, m²) | – | 0.20 | 0.40 | 0.90 | 1.40 | 1.70 | 2.10 | 2.20 | 2.50 | 2.50 | 2.50 | 2.80 | 2.80 | 2.70 | 2.60 | 2.60 | 2.60 | 2.60 | 2.50 |
| 45 mm · 245 mm · ceiling raft 1000 x 1000 mm (Aobj, m²) | – | 0.10 | 0.10 | 0.40 | 0.80 | 0.90 | 1.00 | 1.10 | 1.30 | 1.30 | 1.40 | 1.60 | 1.50 | 1.40 | 1.30 | 1.30 | 1.30 | 1.30 | 1.30 |
| 60 mm · 260 mm · ceiling raft 1000 x 1000 mm (Aobj, m²) | – | 0.10 | 0.10 | 0.50 | 0.80 | 0.90 | 1.00 | 1.10 | 1.30 | 1.50 | 1.60 | 1.60 | 1.60 | 1.50 | 1.40 | 1.30 | 1.30 | 1.30 | 1.30 |
| 60 mm · 260 mm · ceiling raft 1500 x 1000 mm (Aobj, m²) | – | 0.10 | 0.30 | 0.70 | 1.10 | 1.30 | 1.50 | 1.70 | 1.90 | 2.00 | 2.20 | 2.30 | 2.20 | 2.10 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| 60 mm · 260 mm · ceiling raft 2000 x 1000 mm (Aobj, m²) | – | 0.20 | 0.40 | 1.00 | 1.40 | 1.60 | 2.00 | 2.30 | 2.50 | 2.60 | 2.80 | 3.00 | 2.90 | 2.70 | 2.60 | 2.60 | 2.50 | 2.50 | 2.50 |
| 60 mm · 220 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | – | 1.00 | 1.20 | 1.30 | 1.40 | 1.90 | 1.90 | 2.00 | 2.10 | 2.10 | 1.90 | 1.80 | 1.80 | 1.70 | 1.60 | 1.70 | 1.70 |
| 60 mm · 420 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | 0.50 | 1.10 | 1.30 | 1.30 | 1.30 | 1.50 | 1.90 | 2.20 | 2.30 | 2.20 | 2.20 | 2.10 | 2.10 | 2.00 | 2.00 | 1.90 | 1.90 |
| 60 mm · 420 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | – | 1.70 | 1.40 | 1.80 | 1.80 | 2.30 | 2.90 | 3.40 | 3.30 | 3.30 | 3.00 | 2.90 | 2.80 | 2.80 | 2.90 | 2.80 | 2.80 |
| 60 mm · 220 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | – | 1.60 | 1.30 | 1.80 | 1.90 | 2.60 | 2.80 | 3.10 | 3.00 | 3.00 | 2.60 | 2.60 | 2.40 | 2.30 | 2.30 | 2.40 | 2.10 |
| 60 mm · 220 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | – | 1.90 | 1.80 | 2.50 | 2.40 | 3.40 | 3.60 | 3.70 | 3.70 | 3.80 | 3.40 | 3.50 | 3.40 | 3.40 | 3.40 | 3.30 | 3.20 |
| 60 mm · 420 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | 1.50 | 1.90 | 2.00 | 2.40 | 2.40 | 2.90 | 3.70 | 4.30 | 4.20 | 4.30 | 4.10 | 4.00 | 3.90 | 3.90 | 3.90 | 3.80 | 3.90 |
Measured values as a table (12 measurements)
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