Acoustic Insulation - 09 81 00
Sound waves are reflected when they hit a hard surface. Acoustic insulation material works by preventing reflected sound waves from entering or leaving a room, or from traveling from one place to another, such as between apartments in a building. Sound Transmission Class (STC) ratings indicate how effective a certain sound insulation material is at blocking sound. The higher the STC number, the better the material blocks sound transmission.
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Subdivisions under Acoustic Insulation:
- 09 81 13 - Acoustic Board Insulation
- 09 81 16 - Acoustic Blanket Insulation
- 09 81 29 - Sprayed Acoustic Insulation
Latest Articles, White Papers & Case Studies about Acoustic Insulation:
A Look into Sound Control by RSMeans Engineering Staff
Architects and engineers use various methods when attempting to control sound in the environments they are designing. The basic theory behind most products used to control sound is to absorb or control vibration. Sound waves striking a solid object like a door, wall or ceiling cause vibration. Vibration is transmitted from one face of the object through it to the opposite face, thus causing noise. If the vibration can be absorbed or dissipated, then the amount of noise will be reduced.
Tips on Estimating Acoustic Insulation Costs from RSMeans
 | Acoustical systems fall into several categories. The takeoff of these materials should be by the square foot of area with a 5% allowance for waste. Do not forget about scaffolding, if applicable, when estimating these systems. |
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