The material known as sound board is often distributed as a private label product with a couple name brand versions available as well. The isolation gains from this type of material in walls and ceilings is minimal. Some increase in performance is reasonable to expect from the softened connection sound board can provide between drywall and framing, but those gains are never realized due to the board’s severe lack of mass. Ultimately, the performance gains of sound board in a wall or ceiling are equal to that of an additional layer of drywall. There are no sound tests showing the performance of sound board in floors.

Our Advice

Sound board, and similar type materials, may be okay for floors, but a waste of time and money in your walls and ceilings. If you want to layer materials then stick with products that are cheaper and higher in mass, like drywall or plywood.

Comments are closed.