How To Improve STC Ratings Using the SoundBook from National Gypsum

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Jan 12, 2024

Reducing sound transmission from one room to another and from outside to inside has proven to be beneficial to occupant health and productivity.

However, choosing the right acoustical wall design to balance code, material and client requirements isn’t always straightforward. This article from National Gypsum explains how wall assemblies are tested for an STC rating and what strategies can be used to diminish airborne sound traveling from one space to another.

These six variables can be changed to affect an acoustical wall assembly’s STC rating:

• Mass
• Cavity absorption
• Cavity depth
• Stiffness
• Decoupling
• Damping

In the article, National Gypsum Company provides examples of wall assemblies from The SoundBook® to showcase each of the six variables and how a higher STC rating can be achieved.

@NationalGypsum #NationalGypsum #construct

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