Acoustic Louver
Performance Notes1. Test data obtained in accordance with ASTM E90 test standard for Transmission Loss.
2. Free Field Noise Reduction = Transmission Loss + 6 dB
3. Sound Transmission Class (STC) = 12, obtained in accordance with ASTM E413.
2. Free Field Noise Reduction = Transmission Loss + 6 dB
3. Sound Transmission Class (STC) = 12, obtained in accordance with ASTM E413.
Dimension Appearance
Testing
| Louvre Model | AL150 | AL200 | AL300 | |
| Material | 6063-T5/T6 | 6063-T5/T6 | 6063-T5/T6 | |
| Frame | 2.0-3.0 mm | 2.0-3.0 mm | 2.0-3.0 mm | |
| Angle | 40° | 40° | 40° | |
| Depth | 152 mm | 200 mm | 300 mm | |
| Blade | 2.2 mm | 2.2 mm | 2.1 mm | |
| Free Area | 31% | 31% | 31% | |
| STC | 9 | 11 | 15 | |
| Weight kg/M2 | 25.69 | 33.53 | 45.95 | |
| SOUND TRANMISSION LOSS STL (dB) | 125 | 5 | 5 | 5 |
| 250 | 2 | 3 | 4 | |
| 500 | 5 | 6 | 10 | |
| 800 | 8 | 11 | 15 | |
| 1K | 9 | 12 | 16 | |
| 2K | 12 | 16 | 20 | |
| 4K | 10 | 12 | 17 | |
| 6.3K | 10 | 12 | 16 | |
| 8K | 10 | 12 | 16 | |
| NB Noise reduction (dB) | 125 | 10 | 11 | 11 |
| 250 | 9 | 9 | 11 | |
| 500 | 12 | 14 | 17 | |
| 800 | 16 | 19 | 23 | |
| 1K | 17 | 20 | 24 | |
| 2K | 21 | 25 | 30 | |
| 4K | 20 | 23 | 28 | |
| 6.3K | 22 | 23 | 28 | |
| 8K | 23 | 25 | 29 | |
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.
Project
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