The International Building Code requires minimum STC 50 for a party wall separating two dwelling units (condominiums or apartments). With this STC value, loud speech is heard across the party wall with some effort and music is heard easily. As a consulting acoustician, what STC value would you recommend to the architect/project owner for the party walls in an upscale condominium project?
What will be an ideal response?
STC 60. This will ensure the inaudibility of loud speech across the wall; music will be heard faintly.
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