10 Questions
What type of joint is required between the mechanical room and critical spaces if full acoustic separation cannot be achieved?
Acoustic separation joint
Why should a lightweight roof deck not span continuously between a mechanical room and a sound-critical space?
To prevent sound or vibration transmission
What should be done to shaft walls adjacent to quiet areas in terms of their construction?
They should be made of medium to heavy weight masonry
What design feature is recommended for ductwork passing through different spaces on its way to a sound-critical space?
Sealed connections to prevent direct openings
Which of the following is advised regarding fresh-air intake and exhaust-air discharge openings in relation to critical outdoor areas?
They should not lead to critical outdoor areas
What is one important consideration when designing ductwork for sound-critical spaces?
Preventing noise from breaking in or out
What is a recommended maximum trunk duct velocity for effective noise control in performance spaces?
$1000$ FPM
In very critical cases, mechanical room doors may require:
Acoustical seals or sound-rated acoustical doors
What type of wall construction is generally recommended for shaft walls adjacent to quiet areas?
Heavy weight masonry
What should be done with fresh-air intake and exhaust-air discharge openings?
Not lead to critical outdoor areas or locations where noise can re-enter the building
Learn about concave surfaces that can cause uneven focusing of sound energy. Explore common diffusive surface shapes and general strategies for mechanical noise and vibration control in buildings.
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