We had installed an office partition using gypsum board for the technical and QC staffs of a metal container manufacturer right at the middle of the assembly line.
The sound from the assembly line that transmitted to the office was too loud.
How did we insulate the office partition? What did we do to reduce the sound transmission?
As had been mentioned briefly in my previous post, rock wool was used for sound insulation : it was being placed in between the metal stud / partition board and would absorb the loud sound coming from the assembly line that would otherwise be transmitted to the office.
We covered all the portion of the partition wall to prevent the 'sound leak' because how you cover the wall with insulation material also play an important part in determining how good the sound insulation is.
Other 'sound leak' that we looked into were the door and fixed half glass. Windows and doors are the major source where sound can enter the office or from one side of a wall to another.
In this case, with the nyatoh door, we minimised the gap around it's perimeter because most of the sound leaked through the gap around the door ; with the fixed half glass , we installed double glass instead of normal single glass because the air trapped in between the two pieces of glass is very effective in reducing the sound transmission from the assembly line to the office.
