This article, the third in our deep-dive series on acoustics, focuses on optimizing the Indoor Environmental Quality (IEQ) on your next project through sound isolation or sound blocking. We explain the difference between blocking and absorption and address the function that blocking plays in ensuring indoor speech privacy.
You will learn about sound transmission class (STC) and how it is calculated and used in acoustic room design and building acoustics planning. We’ll also cover how sound blocking is applied in different types of buildings to meet specific acoustics goals.
Most importantly, we include specific direction on how to use different construction assemblies and materials hand in hand to manage interior noise and ultimately contribute to a healthy and productive experience for building occupants.
Acoustic insulation is one aspect of soundproofing your space; it is typically a component of a floor or wall assembly designed to ensure sound comfort for occupants. Managing the acoustics of a built environment, by its most simple definition, is done by either blocking or absorbing sound (one example being a sound barrier wall with acoustic insulation inside).
Most acoustic home and building design plans include a combination of both to reduce the transmission of unwanted direct sound from the source. When it comes to blocking interior sound (we will also refer to this interchangeably as “sound isolation”), the materials selected to support the acoustics objectives matter as much as the design of the space itself.
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