A sound-control batt is missing around a plumbing penetration in a rated corridor wall. What is the best field response?
Correct Answer
B) Fit the insulation around the penetration and maintain the required wall assembly details.
Acoustical insulation should be fitted so the intended assembly is continuous around penetrations while required fire and wall details are maintained.
Why This Is the Correct Answer
Acoustical insulation should be fitted so the intended assembly is continuous around penetrations while required fire and wall details are maintained.
Why the Other Options Are Wrong
Option A: Leave the gap because pipes provide enough sound blocking.
Leave the gap because pipes provide enough sound blocking. may relate to another site control, but it does not remove or guard the acoustical insulation exposure being tested.
Option C: Remove all insulation from that stud bay so the wall is uniform, from floor to ceiling around every penetration.
Remove all insulation from that stud bay so the wall is uniform, from floor to ceiling around every penetration. may relate to another site control, but it does not remove or guard the acoustical insulation exposure being tested.
Option D: Pack loose debris into the gap before the wall is closed.
Pack loose debris into the gap before the wall is closed. may relate to another site control, but it does not remove or guard the acoustical insulation exposure being tested.
Memory Technique
If Checking Apartment can still reach the worker, the control is decoration.
Reference Hint
Study anchor (closed-book): memorize Acoustical insulation from 2025 California Building Code, California Code of Regulations Title 24 / Title 24 California Building Code acoustical and wall assembly installation; know the rule or calculation trigger without relying on exam-room lookup.
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