A duct crosses a fire-resistance-rated wall. The approved detail requires a firestop system and damper, but neither is installed. What must be restored?
Correct Answer
B) The complete rated penetration protection specified in the approved detail.
Verify the complete protection required by the approved rated-wall detail, including the specified firestop and damper. An air seal alone does not demonstrate fire-resistance performance, and a listed product must be installed in the applicable assembly. Source: https://www.ul.com/sites/default/files/2024-10/Firestop-and-Joint-application-guide-final-draft-4-29-24pm-1.pdf
Why This Is the Correct Answer
Verify the complete protection required by the approved rated-wall detail, including the specified firestop and damper. An air seal alone does not demonstrate fire-resistance performance, and a listed product must be installed in the applicable assembly. Source: https://www.ul.com/sites/default/files/2024-10/Firestop-and-Joint-application-guide-final-draft-4-29-24pm-1.pdf
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