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acoustics brochure

acoustics brochure
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CODE REQUIREMENTS AND GUIDELINES When it comes to acoustics, it’s hard to keep up with the ever-expanding code requirements and guidelines. This listing may just help. HUMAN HEARING IS FAR FROM SIMPLE We hear poorly at low (bass) and high (treble) frequencies and it also varies based on our age. In addition, human hearing is non-linear in our perception of loudness. Every sound has a particular frequency, measured in hertz (Hz) and amplitude, which is measured in decibels (dB*). These parameters of sound are processed in distinct ways. Two people may hear the same sound in very different ways. *The dB is a logarithmic unit of measure used to compensate for this effect. Because the scale is logarithmic, an increase of a few dB represents a very large change in perceived volume. Every increase of 10dB on the scale is equivalent to doubling in loudness. As an example, the difference between 20dB and 100dB is similar to the difference between a whisper and a rock ‘n’ roll concert. COMMON SOUND LEVEL (dB) EXAMPLES dB Loud concert Crowd noise Very loud, harmful Loud music Freeway traffic Office setting Home setting Whisper Subtle breathing Very faint Classrooms • ANSI S12.60 Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools • Improve learning and communication GREAT DESIGN IS A LOT MORE THAN GREAT AESTHETIC. Multifamily Residential Buildings • International Building Code (IBC), Section 1207 • Reduce exterior noise and sound transmitted between units • Minimum 50 STC and 50 IIC “Green” Building Construction • USGBC LEED® Indoor Environmental Quality (IEQ) credits for Acoustical Performance • Ensure “green” building designs do not compromise acoustics • HVAC noise, exterior noise, reverberation time, NRC, STC and IIC requirements Barely audible Healthcare Facilities • Health Insurance Portability and Accountability Act (HIPAA) for patient privacy • 2014 FGI Guidelines for Healthcare Facilities HEAR AND EXPERIENCE THE DIFFERENCE. HEAR AND EXPERIENCE THE DIFFERENCE. HEAR AND EXPERIENCE THE DIFFERENCE. AC3319/6-15 © 2015 USG Corporation and/or its affiliates. All rights reserved. The trademarks USG, ECLIPSE, F-FISSURED, FROST, HALCYON, MARS, MILLENNIA, RADAR, SANDRIFT, the USG logo, the design elements and colors, and related marks are trademarks of USG Corporation or its affiliates. SECOND COVER BACK COVER OUTSIDE COVER FOLDS OV

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GREAT DESIGN IS A LOT MORE THAN GREAT AESTHETIC. It takes into account other critical details, such as sound, in theaters, public spaces, museums, churches and schools where we live, work and play. It can enhance or inhibit human interactions, learning and healing. Understanding sound and how it’s most typically measured is critical. When walls don’t extend all the way from the ﬂoor to the deck above, noise can travel through the ceiling plenum from one room to another. To reduce the noise intrusion between rooms, use an acoustical ceiling panel that has a high CAC or a value that closely...

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