Acoustic IndexAcoustic Index

Plafotherm St expanded metal ceiling

NRC 0.60–0.65

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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.

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Documents

EPDFire protectionDatasheet

Description

Expanded metal heating and cooling ceiling. A perforated sheet with acoustic fleece and a register on the rear is inserted into the expanded metal tray; the absorption takes place at this sheet. With the Plafotherm Cu register, the nominal cooling capacity is 96.60 W/m² and the nominal heating capacity 122 W/m², with a 5.9 in open joint all round 117 and 129 W/m² respectively, in each case at 10 K per EN 14240 and 15 K per EN 14037:2003 and referred to the active area.

Technical data

Material: Galvanised steel sheet, expanded metal ceiling panel
Surface: Powder coating COLOURline, MOODline deep matt, expanded metal MESHdesign
Fire class (EN 13501-1): A2-s1,d0
Certifications: CE per EN 13964, EPD per EN 15804, TAIM technical manual for metal ceilings, VOC emission class A+, Indoor Air Comfort Gold

Measurement data

Sound absorption

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

NRC
0.65

Frequency values

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CompareVariantValue
Variant 2NRC0.65
Variant 1NRC0.60

Test report: M66 877/7

NRC: 0.65 (derived from ISO 354 lab data)

Measurement date: 11/30/2007

Absorber: 0.79 in

Application: with heat-conducting profile

Distance: 7.9 in

Perforation: 16 x 11 x 1.5 x 1.0

Terms of use
Measured values as a table (2 measurements)
Plafotherm St expanded metal ceiling: 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
16 x 11 x 1.5 x 1.0 · 7.9 in · with heat-conducting profile0.600.360.500.580.690.800.790.770.760.620.480.460.480.430.400.380.350.320.31
16 x 11 x 1.5 x 1.0 · 7.9 in · with heat-conducting profile0.650.390.560.680.760.840.820.770.760.630.550.550.530.490.450.410.380.360.35
Measured values as a table (2 measurements)

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