US Green Building Council Exam LEED-AP-ID+C Topic 3 Question 5 Discussion

Actual exam question for US Green Building Council's LEED-AP-ID+C exam

Question #: 5
Topic #: 3

The site of a new open-plan office building is located near a highway. The acoustic consultant is investigating the possibility of using sound masking system to cover the noise impact from the busy road. If sound masking is found to be a feasible option, the noise design of the project can have a maximum limit up to

A36 dBA

B48 dBA

C62 dBA

D70 dBA

Show Suggested Answer

Suggested Answer: B

According to the LEED v4 guidelines for Interior Design and Construction, sound masking systems are used to provide an acoustically superior environment for occupants.The design levels for these systems should not exceed 48 dBA to ensure that loudspeaker coverage provides uniformity of 2 dBA and that speech spectra are effectively masked1.

LEED v4 for Interior Design and Construction guidelines on acoustic performance and sound masking systems1.

by Ressie at Jan 14, 2025, 03:01 PM

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Terrilyn

4 days ago

I don't know, 48 dBA might be a bit too low. I'd go with D) 70 dBA - that way the noise from the highway won't be a problem, and we can crank up the music to our heart's content!

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