As we continue to densify, sound control can be a huge challenge. This goes for all types of existing and new construction, and for all types of occupancies. Just like water, sound will infiltrate where one least expects it.
In a recent project, we installed a specialized noise control system to completely separate the framing from the ceiling assembly. The system is a series of spring brackets with rubber grommets. The key word: “Separate.”
A rundown of the layers, from top to bottom:
- 2× joists attached to the existing bar joists.
- Isolator brackets, attached to the wood with screws. (They are engineered, and color coded by the expected weight load.)
- Steel channel attached to the brackets with factory installed set screws.
- Standard hat channel, screwed to the channel edge.
- Sheet rock installed as usual.
The noise and vibration is absorbed by the isolation brackets, and the insulation further deadens the sound transmission. The end result is a value add.