For the roof
The sound insulation of the car’s roof increases both the noise reduction of the roof closure panel as well as the acoustic absorption of the closure panel. A car’s roof surface area is approximately 2.5 square metres, a significant surface that, if effectively isolated, will provide a considerable contribution to the general reduction of cabin noise.
| Layer One | Vibration insulation: Alumast Alpha M2 |
|---|---|
| Layer Two | Sound absorber: Violon VEL "Wave" |
| Layer Three | Headlining sound absorber: Violon PT (Autofelt) |
Alumast
The insulating (absorbing) butyle-rubber material.
Armature
The ultrahard insulating (absorbing) material.
Bitalym
The insulating (absorbing) butuminic material.
Carpet
The decorative cushioned material.
SGM-Izol
The combined sound absorber and insulating materials.
Violon BlackWell
Super effective viscoelastic soundproofing foam.
Violon PT, PTN
Sound absorber material. Synthetic felt.
Violon VEL
The viscoelastic absorption and anti-creak material.
