Tag Archives: acoustics

Sound-deadening with Sprayfoam: Adding unexpected value with SPF

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Insulating walls with low-pressure sprayed polyurethane foam (SPF) is a common practice among builders and architects for various reasons—such as increased energy efficiency, structural support, and overall comfort. One of the ways SPF can increase the comfort of a structure is through the material’s sound-deadening properties, which contractors can employ to bring additional value to a project.

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Designing Sound Isolation in Multi-family Living

Acoustic_Rendering Twenty 20 Credit CBT Architects

Imagine moving into a new condo, only to realize the TV next door, the dog barking across the hall, and the neighbors walking around upstairs can all be easily heard. Acoustical consultants would love to help, but unfortunately there is little that can be done at this stage without significant cost and intrusion. Sound isolation issues are most effectively addressed before construction, during the design phase.

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Hospital Quiet Zone

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Conversations and the cacophony emanating from telephones, alarms, televisions, carts, doors, medical, and mechanical equipment ensure noise is ever-present in U.S. hospitals. Various economic incentives, regulatory measures, and design guidelines have been developed over the past decade to encourage hospitals to address this problem.

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Sound Thoughts on Door and Frame Assemblies: Exploring differences between STC and STL ratings

All images courtesy MegaMet Industries

When sound control acoustic door assemblies are selected, the usual way is to specify a sound transmission coefficient (STC) rating in accordance with established standards. However, this is not as catch-all as it sounds, especially when the sounds that must be blocked come in different frequencies. This article works to clarify some misconceptions about STC, and explores sound transmission loss (STL), which is derived from actual lab testing at specific frequencies.

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