Sprinkler Plan Review Under a Permit Deadline
A tenant submits plans to convert a 4,800 sq ft (446 m²) mercantile space in an existing strip mall into a restaurant with 120 fixed seats. The building official's office has 30 days to act on the permit application. On day 22, the plans examiner notices the submitted fire protection drawings show a wet-pipe system designed to the light-hazard density, but the kitchen hood suppression and the new cooking equipment are not coordinated with the building sprinkler drawings. The applicant argues the kitchen suppression is a separate permit and asks the examiner to approve the building permit so construction can start. The examiner is unsure whether to approve with a condition, deny, or request more information, and whether the 30-day clock forces a decision.
1. Should the plans examiner approve, deny, or request additional information? What is the correct procedural path?
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The examiner should not approve plans that are internally inconsistent on a life-safety system. The correct path is to issue a written request for additional information (a correction notice) identifying the specific deficiency: the relationship between the building sprinkler design and the kitchen hood/equipment protection is unresolved, and the occupancy change may alter the hazard classification used for the sprinkler design.
Reasoning:
- A change of occupancy to a restaurant with cooking introduces a distinct hazard (commercial cooking) that is outside the light-hazard assumption in the submitted drawings. Approving would lock in a design basis the examiner cannot verify.
- The 30-day clock does not require approval; it requires the department to act - a timely written correction request is an action. Denial is premature because the applicant has not been given a chance to correct.
- The separate hood permit does not relieve the building permit reviewer of confirming that the two systems are coordinated; both are fire protection features of the same space.
Best practice: document the deficiency, give a specific resubmittal deadline, and note that approval is contingent on a coordinated set.
2. If the applicant resubmits with the kitchen protected by a listed wet chemical system and the building sprinklers left at light hazard, what should the examiner verify before approving?
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Verify, at minimum:
- Hazard classification - confirm the sprinkler density is appropriate for the actual combustible loading of the dining and kitchen areas, and that any storage or cooking-fuel areas are not higher hazard than assumed.
- Coordination - the hood suppression system and the building sprinkler system are shown on a single coordinated set with clear responsibility for each area; no unprotected gap at the hood/duct interface.
- Duct and hood protection - duct protection and appliance shutoff are addressed consistently with the hood system design.
- Shutoff and alarm - activation of the hood system and the sprinkler system are coordinated so a single event does not leave the other system disabled without notification.
- Plan consistency - the resubmittal matches the architectural and mechanical drawings (equipment locations, ceiling heights, soffits).
Only after these are resolved should the examiner approve, and any approval should reference the coordinated set as the approved documents.