Trace each deluge zone from the hazard it protects into the specification’s system description, then compare the open sprinklers or spray nozzles drawn, the detection and manual release that open the valve, the releasing control unit and its power, the water supply that must feed every head at once, and the drainage for the discharge. Check whether the section was edited to invoke NFPA 15 water spray as well as NFPA 13.
Assemble the review package
Gather the fire protection plans, riser diagram, and hydraulic design notes, the drawings of the protected hazard (hangar floor, fuel area, equipment), the fire alarm plans showing detectors, manual release stations, and the releasing control unit, the civil or plumbing drainage drawings for the protected area, and the issued Section 21 13 19. Review one deluge zone from detection to drain before assuming an adjacent zone matches.
WBDG publishes UFGS 21 13 19: Deluge Sprinkler Systems, Fire Protection as a public guide-specification reference (accessed October 17, 2026). Use your project’s issued specification and amendments for the actual comparison; the guide specification does not automatically govern your project. The checklist below is an original suggested review workflow, not a reproduction of the UFGS requirements.
Eight checks to run against the issued set
Use one record per location or system. The CSV contains the same eight prompts plus fields for source revisions, observed evidence, the review owner, the decision, and closure references.
| Check | Sources to compare | Question to resolve |
|---|---|---|
| Protected hazard and zone limits | Hazard drawings + System Description article + fire protection plans | Does each deluge zone drawn cover the hazard the specification names, with zone limits that match the riser diagram? |
| Sprinklers or water spray nozzles | Sprinkler legend + Sprinklers article + plans | Are the open sprinklers or spray nozzles drawn the type the specification and design notes call for, and is NFPA 15 invoked where nozzles are used? |
| Detection and manual release | System Actuation and Manual Release Station articles + fire alarm plans | Is the detection that the actuation article describes drawn over the hazard, and is a manual release station shown where operators can reach it? |
| Releasing control unit and annunciation | Releasing Control Unit and Annunciator articles + fire alarm riser | Is the releasing control unit shown and tied to the building fire alarm system, with the annunciation the section specifies? |
| Power | Electric Power and Secondary Power Supply articles + panel schedules | Is the releasing control unit circuit on the panel schedule, and does the battery calculation the section requires cover the devices drawn? |
| Water supply for simultaneous discharge | Basis for Calculations article + water supply data + fire pump drawings | Do the design notes show a dated flow test and a supply (including any fire pump) sized for every open head in the largest zone? |
| Drainage of discharge | Civil or plumbing drainage drawings + protected area floor plans | Is there a drainage or containment path drawn for the water the deluge zone will discharge, and is it coordinated with any fuel or foam separation? |
| Testing provisions | Minimum System Tests article + riser and drain details | Can the tests the section requires be performed with the drains, test connections, and access drawn? |
Worked example: a deluge zone with no drainage path
Illustrative example: an equipment bay is protected by a deluge zone drawn with open sprinklers across its full area. The plumbing and civil drawings show trench drains in the adjacent bay only, and the protected bay’s floor plan shows no drain, curb, or containment for discharge water.
Ask the fire protection and civil designers to confirm where deluge discharge goes and whether it needs separation or containment, then coordinate the floor plan, drainage drawings, and fire protection plans. Check the other deluge zones for the same gap before closing the item.
Avoid a false conflict
Deluge discharge, drainage, and water supply are often designed by different disciplines. A complete fire protection sheet does not prove the drainage and supply sheets were sized for the same zone.
When requirements disagree, follow the project’s document-control and clarification process. Do not assume that drawings always override specifications, or the reverse. Identify the exact sources and request an authorized decision.
Close the issue across the affected documents
Record the location or tag, drawing and specification references, issue dates, observed difference, and the decision needed. Assign an owner and keep the item open until the response identifies the governing requirement. Check the revised drawings and specification references together; a response email alone may leave the issued package inconsistent.
For the overall process, use the guide to drawing and specification conflicts. Mark an inapplicable checklist row with a reason, and distinguish a verified correction from a question that still needs design information.
Where Groundbook fits
Groundbook’s drawing and specification review helps investigate potential disagreements in the documents you supply. Include the relevant specification sections and drawing references, then verify the cited evidence with the responsible reviewers before acting on a finding.