Tidsfristen er overskredet
Sørmarka Arena is planned to be adapted for major concerts for up to 15-20 000 persons.
Room acoustic improvements shall be carried out in the hall and measures that can make the hall more suitable.
The ceiling surface in the northern and southern halves of the hall have very different sound absorbing qualities. A sealed steel plate roof has been used in the southern end, whilst a perforated steel plate ceiling has been used in the northern end.
This gives large local variations in the sound.
This asymmetry will give an imbalance in the sound in the concert hall's breadth, which will make it very difficult to achieve any acceptable conditions in a concert situation.
In order to make it possible to achieve satisfactory sound conditions during concerts, the absorption must be increased in the ceiling surface in the hall's southern end.