14.5 Managing Multiple Projects, Subcontractors & Installer Coordination

Managing Multiple Projects, Subcontractors & Installer Coordination

The WBSL blueprint escalates coordination across all four levels. A Level I technician assists with coordination surveys. A Level II technician coordinates with other trades. A Level IV technician oversees management of multiple projects and manages subcontractors. It is one skill viewed at increasing scale.

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Running a Portfolio Rather Than a Project

A layout department is rarely working on one job. The failure mode is allocating attention by whoever called most recently rather than by consequence.

+---------------------------------------------------------------------------+
|          SEQUENCING RULE: WORK THE HIGHEST-CONSEQUENCE DEADLINE           |
+---------------------------------------------------------------------------+
|  TIER 1  Sleeve/embed drawings before a concrete pour                     |
|          - the pour will not wait; missing it means coring later          |
|  TIER 2  Long-lead equipment releases (pump, tank, specialty valves)      |
|          - lead time exceeds the installation window                      |
|  TIER 3  Submittals facing an AHJ deadline or a permit expiry             |
|  TIER 4  Revisions blocking fabrication of work already scheduled         |
|  TIER 5  Routine layout on projects whose installation is months out      |
+---------------------------------------------------------------------------+

Two practices make a portfolio manageable. Standardize the details. Riser details, hanger details, seismic brace details, FDC details, and title blocks should be library items, not redrawn per job — reuse cuts hours and removes a whole class of errors. And level the resources deliberately: know each technician's committed hours per week across all projects, because a technician who is "available" on three projects simultaneously is unavailable on all three.

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Managing Subcontractors

Sprinkler contractors subcontract more than people expect:

• Underground / site utility — the fire service main from the point of service to five feet outside the building, thrust blocks, and hydrants.
• Concrete scanning and coring — GPR or X-ray scanning and core drilling, especially in post-tensioned slabs.
• Insulation, painting, and finishes — exposed pipe in finished spaces.
• Fireproofing patch — every hanger and brace that penetrates sprayed fireproofing must be repaired.
• Seismic engineering — where the AHJ requires stamped brace calculations.
• Crane, lift, and rigging — for pumps, tanks, and large spools.
• Third-party testing — fire pump acceptance testing, backflow certification.

Control each one with the same five items:

1. Written scope with explicit inclusions and exclusions. Most subcontract disputes are boundary disputes: who patches the fireproofing, who backfills the trench, who supplies the thrust block concrete.
2. Submittals, insurance, and safety documentation received before mobilization.
3. Schedule tie-in to your milestone list — the underground must be complete and flushed before the aboveground can be hydrostatically tested and connected.
4. Inspection hold points. Underground piping cannot be backfilled before it is inspected and hydrostatically tested; a subcontractor who backfills first has created an excavation-and-retest problem.
5. Payment tied to milestones, not to elapsed time.

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The Coordination Survey

The coordination survey is a physical walk of the space with the other trades before fabrication. NICET makes it a Level I task (1.5.4) because it is where a trainee learns that the drawing and the building are two different things.

What to resolve on the walk:

• Actual structure locations versus what the structural drawings show, including deflection and camber in long-span joists.
• Ductwork, cable tray, conduit racks, and process piping elevations — who is above whom in each corridor, and where the crossings are.
• Ceiling heights, soffits, bulkheads, and light fixture locations against the reflected ceiling plan.
• Access for maintenance: can the drum drip be reached, can the control valve be operated, can the inspector's test connection be read.
• Existing conditions in renovation work: abandoned pipe, unmarked penetrations, post-tensioned slabs, historic finishes.

The output is a marked-up set and a written list of unresolved conflicts, each of which becomes either a design revision or an RFI. Unresolved conflicts must not go to fabrication.

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Sleeves, Embeds, and the Timing Problem

Sleeve and embed locations must be issued long before the sprinkler shop drawings are complete, because concrete pours are scheduled around structural work and will not pause for a fire protection review cycle. That forces an uncomfortable but standard practice: issue a sleeve and embed drawing early, based on the layout as it stands, with deliberate tolerance built in.

• Oversize the sleeve relative to the pipe, and remember that seismic separation requires a larger annular clearance around pipe 4 in. and larger than around smaller pipe.
• Group penetrations where the routing is still uncertain, rather than committing to a single tight opening.
• Record every issued sleeve on a log with its elevation and coordinates, and reconcile it after the pour — because sleeves move during placement, and a sleeve that ended up three inches low changes your main's elevation.

Missing a pour means coring afterwards: slower, more expensive, and in post-tensioned construction it demands scanning and can be refused outright.

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The Office-to-Field Handoff

A correct drawing does not install itself. Hold a turnover meeting with the installing foreman before the first spool arrives and walk:

• The drawing set, revision level, and which sheets are current — with superseded sheets physically removed from the field set.
• The spool piece marks and how the staging bundles map to areas and sequence.
• Hanger and brace layout, including which attachments require specific anchors and where fireproofing patch will be needed.
• Test connections, drains, and drum drip locations — the items most often value-engineered out in the field by a crew that does not know why they are there.
• The RFI channel: a single route from field to office, so questions are answered once and recorded.
• The expectation that as-built markups come back, continuously, not as a memory exercise at closeout. Poor as-builts produce the poor record drawings that make the next renovation survey — and the facility's whole ITM plan — expensive.