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A plumber finds that a sanitary pipe sleeve through a rated wall was omitted before the wall was closed. The crew proposes core drilling and leaving the annular space open. What should the superintendent require?

Correct Answer

D) Coordinate an approved penetration and firestopping detail before the pipe is installed

Penetrations through rated assemblies need approved openings and firestopping systems; leaving the annular space open can compromise the rating. Other choices ignore the rated assembly or use unapproved stuffing.

Answer Options
A
Core drill and leave the gap because the pipe is noncombustible
B
The superintendent should cut the pipe smaller to avoid firestopping
C
Base the sleeve coordination response on pack the gap with scrap insulation
D
Coordinate an approved penetration and firestopping detail before the pipe is installed

Why This Is the Correct Answer

Penetrations through rated assemblies need approved openings and firestopping systems; leaving the annular space open can compromise the rating. Other choices ignore the rated assembly or use unapproved stuffing.

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