Ceilings have a considerable influence on the acoustic performance of a space and should be designed in such a way as to address the aural demands of the occupants within.

Sound absorption is the ability of a surface to absorb sound, minimizing sound reflection in
the room. Reflected sounds create undesired and uncomfortable reverberations throughout the area and will ultimately increase the perceived sound level.

 suspended ceilings are an important factor in reducing these undesired reflections
through the use of sound absorbing materials, combined with the perforations in the ceiling
allowing the sound to pass through.

The sound absorption coefficient aw is the fraction of the total sound that is absorbed by the suspended ceiling. The remaining unabsorbed fraction is reflected back into the room.

The sound absorption coefficient has a value between 0,0 (no absorption - all the sound is
reflected) and 1,0 (complete absorption - equivalent to an open window).

The absorption factor is measured according EN20354:2003 and EN11654:1997.
vektron ili is equipped with an acoustic fleece and polyester wool.