Unprotected Opening in an Existing Separation
During a renovation of a 1970s two-story office building, the contractor installs a new 6-foot-wide (1.8 m) opening in a wall that separates the building's main lobby from an attached parking garage. The wall is a required fire separation. The contractor argues the opening is fine because the garage has a sprinkler system and the opening has a self-closing door. The inspector observes the door is a standard wood door with no fire-rating label and the opening has no fire-rated frame. The building official must determine whether the separation is maintained.
1. Is the installed assembly acceptable as a protected opening in a required fire separation?
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No. A required fire separation must be maintained, and openings in it must be protected by an assembly with the required fire-resistance rating - typically a labeled fire door in a labeled frame, with the rating matched to the wall's required rating.
Key points:
- A standard wood door with no label has no demonstrated fire-resistance rating and cannot serve as a protected opening.
- The presence of sprinklers in the garage does not automatically permit an unprotected opening; any allowance for sprinklered conditions must be specifically provided by the code and applied to the actual construction.
- The opening size (6 ft / 1.8 m) and the missing rated frame compound the deficiency.
Conclusion: the separation is compromised; the opening must be protected with a compliant rated assembly or the wall must be restored.
2. What must the contractor do to bring the opening into compliance, and what should the official verify?
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Required corrections:
- Install a labeled fire door assembly (door, frame, hardware) with a rating equal to or greater than the required rating of the separation wall.
- Ensure the door is self-closing and positive-latching, and that hardware is appropriate for the rating.
- Confirm the opening does not exceed any size limits for protected openings in that wall.
Verification by the official:
- Check the label on door and frame and record the rating.
- Confirm the frame is anchored and the assembly is installed per the listing.
- Confirm the door closes and latches on its own and is not blocked or propped.
- Document the correction and re-inspect before sign-off.
If a rated assembly cannot be installed, the alternative is to close the opening and restore the wall's rating.