Acoustic Louver

Acoustic Louver

Material
Fixed single piece blade profile. Fixed blades, heads, sills and mullions to be manufactured from 1100 series aluminum alloy with 2.0mm thickness. Interior acoustic material to be 60kg/m3 density rock wool insulation protected by non-woven fire retardant 100% polyester sheeting and perforated bent sheet. Louvre pitch to be spaced at 300mm. Total system depth not to exceed 150 mm. All screws to be non-corrosive SS316.
Dimension & Appearance
Innivate Noishield Louvres - Noise Reduction (dB)
Louvre Model V300-2 V150-2 V150-2(z)
System Depth 305 mm 152 mm 152 mm
Pitch 300 mm 250 mm 250 mm
Visual Impact Visible Visible Visible
Octave Band Centre Frequency, HZ 63 11 10 11
125 13 12 12
250 15 11 11
500 19 14 15
1K 24 18 20
2K 28 22 23
4K 28 22 25
8K 31 24 27

Performance(ASTM-90-09) Test data shall be from an accredited acoustical laboratory tested in the US (Riverbank Acoustical Laboratories) in accordance with ASTM E-90-09. The minimum acceptable performance through all octave bands is as follows: V150-2(Z):STC = 13, Free Area = 17%
V150-2: STC = 12, Free Area = 24%
V300-2:STC = 17, Free Area = 28%

Testing

Acoustic Louvre: US River Bank Acoustical Laboratories Testing

Tested by Accredited acoustical laboratory in the US (Riverbank Acoustical Laboratories) in accordance with ASTM E-90-09.

Regular Size of Insect/Bird Mesh Screen (mm)

 
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