Rated Corridor Wall Opened Up Before Close-In
You are performing an above-ceiling inspection on the third floor of a four-story, fully sprinklered Type IIB office building. The corridor walls are required to be 1-hour fire-resistance-rated. Along a 40-foot run you find three conditions. A 4-inch PVC drain from a break-room sink passes through the corridor wall through a hole sawed roughly 5 inches in diameter, with the annular space left wide open. Three fire dampers have been removed from a supply duct that penetrates the same wall, and the duct is now sealed to the drywall with duct tape. A 1-3/4-inch rated door in the corridor has its closer removed and stored on a shelf, with a wood wedge under the leaf. The drywall ceiling above the corridor is scheduled to close Monday, and the general contractor wants the card signed today so the taper can start.
1. State what is required for the PVC drain penetration and how you would evaluate a proposed fix.
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The requirement: a penetration through a fire-resistance-rated assembly must be protected by an approved firestop system having a rating at least equal to the assembly - here, 1 hour. Penetrations provisions of IBC Chapter 7 (Section 714 in recent editions; numbering shifts between editions) point to systems tested to ASTM E814 or UL 1479 and installed per the listing.
What that means in the field: the listing is specific about penetration type, pipe material, pipe diameter, annular space, sealant depth, backing material, and substrate. A 5-inch hole around a 4-inch PVC pipe leaves an annular space that must fall within the listed system's limits and be filled per the manufacturer's installation instructions. Plastic pipe adds another variable: the system must be listed for plastic, because the pipe itself burns away and the sealant must close the gap. Some listings cap the annulus; if the hole exceeds it, the correct answer may be to re-core a smaller hole or rebuild that section of wall.
Evaluating a proposed fix: ask for the manufacturer's listed system number before anything is installed, confirm it covers PVC at that diameter and annulus and a 1-hour wall, verify installers follow the listed depth and backing, and confirm the sealant is labeled and in date. A tube of generic sealant, spray foam, or packed mineral wool with no listing is not a firestop system and cannot be accepted.
Documentation: photograph the opening before concealment, record the listed system used and the installer, and re-inspect after installation while it is still visible.
2. Address the removed fire dampers and the wedged door. What is the deficiency in each, and what would you check before writing the correction?
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Dampers: where a duct penetrates a rated assembly, the opening must be protected - by a listed fire damper with approved access, or by a code-recognized alternative (IBC Section 717 in recent editions). Duct tape sealing a duct to gypsum board is not a damper, an access panel, or a listed assembly, and it has no fire rating.
Check the exception before you cite: the contractor will likely argue the sprinklered-building exception. Exceptions for omitting dampers exist but carry conditions - duct material and gauge, no smoke barrier involvement, and sometimes limitations on the assembly penetrated. Read the exception in your edition, then verify whether the conditions are actually met. If the exception does not apply, the dampers must be reinstalled with required access. Be precise about which way the analysis goes; a wrong citation is worse than a delay.
Rated door: a rated door assembly is a listed assembly - leaf, frame, closer, latching, and positive latching in the closed position. Removing the closer and wedging the leaf defeats the assembly's function and its listing; the wall now has an unrated opening. The deficiency is real regardless of the sprinkler system, and it will recur in service unless the hardware is restored and the wedge removed.
What to check: door label intact, frame label, closer functioning and adjusted, latch engaging in the strike, no undercut or field modification beyond listing, and no other openings propped. Photograph the wedge and the empty closer-mounting holes.
3. Describe the inspection-procedure steps and the documentation you would produce, given that the ceiling closes Monday.
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Do not sign the card. The conditions are open, concealed work, and signing would certify protection that does not exist.
Immediate procedural steps:
- Notify the site superintendent on the spot and the general contractor in writing the same day that the ceiling is not to be closed until re-inspection passes.
- If work continues toward concealment, escalate to the building official - a stop-work or hold on the ceiling is a building-official action, not an inspector's, but the inspector's job is to put the facts in front of that official fast.
- Schedule the re-inspection with enough lead time, and note the re-inspection fee if applicable.
Correction notice contents: permit number, building and floor, date, time, inspector; each item in a separate numbered line with its location, the observed condition, the specific code section, and the required action (listed firestop system for the PVC at 4 in.; listed dampers reinstalled with access, or documented compliance with a named exception; closer reinstalled and adjusted, wedge removed, latch verified). Attach photographs with file names and mark up a plan snippet showing where each item is.
Track to closure: re-inspect every item while still visible, record the listed system numbers and installer, and note the result per item rather than "all corrected." If the ceiling is closed anyway, document that and refer it - the correction now involves opening the ceiling, and that cost sits with the permit holder, not the department.