Louvre Window Acoustic Performance

Reduce the amount of noise pollution entering your building

Altair® Louvre Acoustic Testing

The relatively thick glass and good sealing of the Altair Louvre window system provides an effective noise insulation barrier.

The Altair Louvre window system has been both laboratory and field tested for sound transmission loss.

The laboratory tests were conducted by Stantec Australia Pty Ltd. Testing was conducted to AS1191-2002 in accordance with AS5218:2018.

The field tests were conducted by a member firm of the Association of the Australia Acoustical Consultants. Testing was conducted to AS 5218:2018 and ISO 717-1: 1996E.

 Lab TestField Test
Blade MaterialRw (C,Ctr)R'45w (C,Ctr)
Toughened Glass28 (0;-1)27 (-0.6;-2.7)
Aluminium25 (-1;-2)25 (-0.7;-2.3)
Timber-24 (-0.9;-3.1)

Altair® Dualair System Acoustic Testing

The Altair Dualair Secondary Glazed Louvre system has been laboratory tested for sound transmission loss.

The laboratory tests were conducted by the CSIRO on an Altair Dualair Secondary Glazed Louvre System. The windows comprised of Altair Dualair Secondary Glazed Louvre System within Alspec McArthur 150mm Framing. Testing was conducted to AS/NZS 1276.1:1999 (ISO 717-1:1996).

Test results for Dualair System configured to maximise water penetration resistance (WPR).
Outer Blade MaterialInner Blade MaterialR'w (C;Ctr)
GlassGlass35 (-1;-3)
AluminiumGlass35 (-2;-4)