The three most common financial pain points -- and the ones that do the most damage.
Ceiling height changes, partition additions, and architectural modifications trigger sprinkler layout revisions. The fire protection sub redesigns, resubmits to the AHJ, and reinstalls -- often without a formal PCO because the GC is waiting on architect confirmation. The rework cost is real. The CO submission keeps getting deferred.
Owner changes the occupancy from ordinary to extra hazard. That triggers a full hydraulic recalculation, potentially different pipe sizing, and different head spacing. Engineering cost plus potential material cost plus reinstallation. Fire protection contractors routinely absorb this as included scope because 'the design was already wrong.'
AHJ plan review comments requiring layout modifications are typically treated as included in the original scope because 'that's what design-build means.' On large commercial projects, AHJ comment responses can represent 20-40 hours of engineering and weeks of field rework. Most of it goes unbilled.
Built through ControlQore in the first 30-60 days of onboarding -- maintained monthly.
Yes. When sprinkler layout revisions are required because of architectural changes to ceiling height, partition locations, or hazard classification -- changes that occurred after the original scope was established -- the redesign and reinstallation cost is the architect's or owner's responsibility, not the fire protection sub's. The challenge is documentation and timely submission.
Review comments requiring minor corrections may be included scope. Review comments requiring significant layout modifications, hydraulic recalculations, or material changes are a PCO. Track engineering hours spent on AHJ responses separately. When those hours exceed the allowance in the original estimate, submit a PCO with the engineering time detail as backup.
The triggering document -- an architectural revision, AHJ comment letter, or owner-directed hazard reclassification -- is the basis for the PCO. Supporting documentation: the original drawing showing prior layout, the revised drawing, the engineering hours spent on the redesign, and any material cost differences between the original and revised design. Submit before the reinstallation work begins.
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