Fire Sprinkler System Plan Review and Submittal
Domain overview
Plan Review and Submittal tests whether you can judge a sprinkler package for completeness and compliance before construction, and whether you know the Louisiana approval path: a licensed fire sprinkler contractor submits working plans and hydraulic calculations to the State Fire Marshal's plan review section or a delegated local authority having jurisdiction (AHJ), and installation may not start until approval is issued.
What the package must contain
- Scaled working plans: room use, ceiling heights and construction, hazard classification, pipe routing and sizes, head locations and spacing, hanger and seismic bracing details, riser diagram.
- Hydraulic calculations tied to the plan: density and remote area for the correct standard, K-factors, hose allowance, and the supply curve from a dated flow test.
- Manufacturer data sheets, material list, and the contractor's license number and qualifier signature as the AHJ requires.
- Water supply evidence: static/residual flow test, or tank and fire pump data.
Review sequence
- Fix the standard first: 13D for one- and two-family dwellings and manufactured homes; 13R for residential occupancies of four stories or fewer and within the height limit of the adopted edition; NFPA 13 for everything else. The wrong standard invalidates the rest of the review.
- Match remote area and density to the occupancy classification and any ceiling or combustibility adjustment in the adopted edition.
- Check spacing and obstruction rules, then confirm the calculation uses the same pipe sizes, elevations, and node layout shown on the plan.
Worked example
A six-story, 68-ft hotel is submitted as NFPA 13R. 13R stops at four stories and the edition's height limit, so the reviewer rejects the submittal and requires redesign to NFPA 13, including density/area and hose allowance for the occupancy.
Traps
- Accepting a flow test that is stale, taken at the wrong hydrant, or missing residual pressure.
- Calculations that do not match the drawn pipe sizes.
- Deferred submittals for underground piping or a fire pump without AHJ approval.