Quite Zone is a system not just an insulation.
The Quietzone™ stud is designed to be 1/8" wider than a conventional stud. This allows the attached drywall to float outwards from the top and bottom plate, effectively breaking the sound vibration path through the wall. Quietzone™ ? Acoustic Caulking is used to seal the gap between the drywall and top and bottom plate. This assures that the wall assembly is well sealed and able to vibrate freely. Quietzone™ caulk is designed not to harden and will remain elastic over time.
There is not much difference in the Sound qualities with regular batt insulation and most people use it.
Commercial projects are told to use sound attenuation blankets as specified and all manufactures of insulation have it available.
Subjective Effect of Change in sound Pressure Levels;
3db Just perceptible
5db Clearly noticeable
10 db Twice as loud
15db Big change
20 db Much louder (or quieter)
Very often these tests are used to support acoustic modeling efforts. Acoustic modeling is done in order to predict and then optimize the performance of a material or system using computer simulation. By using the output from the above material property characterizations, a simulation of materials or layers of materials can be created by Acoustic material specialists using specialized modeling programs. These models can determine the Transmission Loss of complex composite materials and systems as well as their Absorption Coefficients. This allows the engineer/designer to evaluate hundreds of different configurations of materials and systems without having to build expensive test components. The Owens Corning staff can work with your engineers to help create these models and help to optimize the acoustic properties of their designs.
*Sound Transmission Class is measured in accordance to ASTM E 90 test methods, which measure the transmission loss characteristics of a partition. Depending on the wall construction, substantially higher (than 10dB) dB reductions can be achieved depending on what type of wall, ceiling, or floor systems are being compared. A laboratory test of a typical untreated interior wall has an STC of 35. Our 2” x 4” QuietZone® Acoustic Wall Framing when used with QuietZone® Acoustic Batts and QuietZone® Acoustic Caulk receives a rating of STC 49, a 14 dB reduction in sound transmission.
The sound performance of a wall or ceiling is given a number rating called STC, or Sound Transmission Class. The higher the number, the better the sound control.
Another rating, the IIC (Impact Insulation Class), is used to describe the sound control performance of floor/ceilings on impact sounds, such as footfalls or moving furniture.
As an example, standard wall construction containing 3 1/2" of insulation with a single layer of 1/2"-inch gypsum board on each side produces an STC of 39. The wood stud wall cavity has been filled with 3-1/2 inch thick fiber glass insulation, one layer of 1/2 inch gypsum board has been mounted to resilient channel spaced 24 inches on center, and the perimeter edge has been sealed. The STC value is 46. The combined effect of absorptive material in the cavity, using 1/2 inch resilient channel to reduce the structural tie between the gypsum board layer and the wood studs, and air sealing the perimeter edge results in increased system acoustical performance.
Sound attenuation blankets are tested per
ASTM C665 Type I and E413