Fire Protection & Sprinkler BIM Services

Fire protection

The engineering position

Obstruction, not collision, is the failure mode

A sprinkler head that does not clash with anything can still be useless. Coverage depends on distance to obstruction, deflector position relative to the ceiling and the obstruction rules for the hazard class — none of which a standard clash test looks at. Fire protection is the clearest example on any project of why clash detection and coordination are different activities, and it is the discipline where treating them as the same thing is least forgivable.

Compartmentation is a model-wide constraint

Every service that crosses a compartment line creates a penetration that needs a seal, a damper or both, and needs access to it. That is not a fire protection deliverable in isolation — it is a constraint on all four disciplines that only becomes visible when the compartment lines are in the federated model as geometry rather than in a fire strategy PDF.

Routing against structure is the recurring conflict

In long-span industrial and warehouse structures the sprinkler main and the structural bracing want the same place, repeatedly and predictably. Because it is predictable, it is worth designing for at zoning stage rather than resolving eleven times at coordination stage.

Deliverables

What is actually produced and issued

Any of these can be appointed on their own or combined. Nothing here depends on buying the intelligence layer, which is not for sale in any case.

DeliverableSprinkler layouts

Head placement against the reflected ceiling plan and hazard class, with spacing and obstruction rules applied.

DeliverablePipework distribution models

Mains, ranges and drops modelled with system assignment and sizing data.

DeliverableWet and dry riser routing

Riser positions, landing valve locations and access coordinated with the architectural cores.

DeliverableCompartment penetration schedules

Every service crossing a compartment line identified, scheduled and coordinated for damper or seal access.

DeliverableCoverage and obstruction reports

Coverage tested as a geometric rule and reported by element, not certified by eye.

DeliverableCoordination drawings

Derived from the model at the status the appointment requires.

How it runs

The sequence, and why it is in this order

Sequence is not a formality on this kind of work. Most of the expensive rework we are asked to fix was produced by doing step four before step two.

01

Hazard and standard

Fix the classification and the standard. Head spacing, obstruction rules and density all follow from it and nothing can start without it.

02

Compartmentation in the model

Compartment lines brought into the federated model as geometry so penetrations become visible as findings rather than as a later discovery.

03

Main routing

Sprinkler mains routed against structure at the same stage as the mechanical primary, not after it.

04

Head layout

Placed against the ceiling plan and tested for spacing and obstruction as a rule set.

05

Coordination

Federated testing, with obstruction and access treated as first-class findings alongside hard clashes.

06

Documentation

Layouts, schedules and reports issued with the QA rule set run.

What we need to start

The inputs that decide whether a start is a real start

Missing any of these is survivable. Not knowing which of them are missing is not, so we establish it at enquiry stage rather than at forty per cent.

Fire strategy, or the hazard classification to apply
Architectural model with reflected ceiling plans and compartment lines
Structural model — bracing and long-span members drive the recurring conflict
Water supply arrangement, pressure and any tank or pump requirement
The sprinkler standard the project runs to

Send us what you have

Automation

Where automation applies to this work

Every line carries its real status. Three of the four states on this site mean "not yet", and we use them.

AutomationCoverage and spacing rule setsLive

Head spacing, wall distance and area per head tested geometrically against the hazard class across the whole model.

AutomationObstruction checkingLive

Distance to obstruction and deflector position tested as rules — the check a clash report structurally cannot perform.

AutomationCompartment penetration detectionLive

Every service crossing a compartment boundary identified automatically and scheduled, across all disciplines.

AutomationDamper access clearanceLive

Access to fire and smoke dampers tested as a clearance zone, because a damper nobody can reach fails at the first inspection.

Scope boundary

What this appointment does not include

Published because a scope boundary discovered at month three is a dispute, and the same boundary stated at enquiry stage is just information.

We do not act as the fire engineer and we do not author the fire strategy.
We do not carry out hydraulic certification or issue sprinkler system certificates.
We do not perform fire modelling, evacuation modelling or smoke control analysis.
Our coverage and obstruction checking supports the responsible fire protection engineer; it does not replace their approval.

FAQ

Questions we are asked at enquiry stage

Do you design the sprinkler system or model someone else's design?

We provide layout and coordination support and model to the hazard class and standard stated in the fire strategy. The fire engineer remains responsible for the strategy and for certification. Where you need a full hydraulically certified design, that is a different appointment and we will say so.

What does obstruction checking actually test?

Distance from each head to obstructions in its coverage area and deflector position relative to the ceiling, against the rules for the stated hazard class. It runs as a geometric rule over the federated model and reports by head, with an element ID against every finding.

Can you identify compartment penetrations across all disciplines?

Yes, provided the compartment lines are in the federated model as geometry. That is usually the missing input rather than a technical limitation, and it is the first thing we ask for.

Is this useful before the ceiling design is fixed?

The main routing is. Head layout is not, because it is entirely determined by the reflected ceiling plan and will be redone. We would rather sequence it correctly than bill for work that gets thrown away.

Full MEP engineeringAll four disciplines coordinated together. BIM coordinationWhere obstruction and access are separated from hard clashes. Industrial and warehousingLong-span structures where fire protection against structure is the recurring conflict. HospitalityFinish-critical ceilings where head position is an architectural negotiation.

Fire protection and sprinkler BIM services