Tenant improvement sprinkler modifications — when they're triggered and what GCs need to plan for

Tell the project team what changes in walls, ceilings, building use, storage, equipment and occupied areas. A small visible head relocation can still affect coverage or the approved design. Avoid a universal head-count permit exemption or percentage-of-remodel rule.

Provide architectural and reflected-ceiling plans, existing sprinkler drawings/calculations, mechanical conflicts and construction phases. The responsible designer determines applicable coverage, obstruction, hazard and calculation requirements under the adopted edition and approved scope.

The building/fire authorities determine the applicable review and acceptance process for the address. Obtain their requirements for changes to existing buildings and systems. A contractor does not grant an exemption or issue the building's certificate of occupancy.

• Review the proposed scope and missing records.
• Coordinate the design and any required submittals.
• Confirm authority review, material availability and access.
• Plan qualified installation, impairment coordination and inspection hold points.
• Collect applicable test, correction and acceptance records.

Separate sprinkler work from ceiling/patching, alarm/electrical and other trades. Record changes and the responsible party for each. We review the accepted sprinkler portion with the GC and confirm a project-specific schedule after scope and authority requirements are known.