Decoupling Systems for Ceilings and Walls
Isocheck Resilient bars are used to fixing of plasterboard or other boards to structure and decouples those boards from the structure, and by doing so improves the acoustic insulation of walls or ceilings. They also allow the wall or ceiling to flex slightly, helping to absorb sound. If the plasterboards of the wall or ceiling can't move, there will be no benefit, whether the insulating material is mounted behind the boards or not.
The resilient bars are made of thin galvanised steel, sometimes with a corrugated web to which plasterboard is attached with screws. Along the bottom is a narrow flange with slots for fixing to timbers or steel studs. They can be trimmed quite easily with a hacksaw or tinsnips.
Insulation slabs, or rolls such as Rockwool or Knauf can be installed between the timber of steel studs, which would add extra sound insulation to the walls and ceilings in addition to thermal insulation.