Passive Fire Protection
Systems that delay the spread of fire and smoke through the building, protecting compartment integrity from cable and pipe penetrations to joints.
In a fire, time is won inside the walls.
The visible face of fire safety is the alarms and suppression systems; the invisible face is the building itself. A fire-rated wall loses its function through a single unsealed cable tray or pipe penetration passing through it; flame and smoke use the smallest gap like a corridor. Passive fire protection closes these gaps against fire and smoke, restoring the integrity of the compartment.
This is not a filling job but a systems job: the right system is selected according to the type of penetration, the fire resistance rating of the wall or slab, and the behavior of the services passing through. In our applications, every penetration is labeled together with the system used and put on record, because a firestopping application gains its full value through its auditability.
- Compartment integrity: The designed function of the fire compartments is preserved at the penetration points.
- A system per penetration type: The right solution for cables, pipes, ducts and joints, each in its own right.
- Labeled, recorded handover: Every penetration is documented; traceability is provided for audits.
- Application in live facilities: Zoned, planned application in operating facilities.
At every point where a fire compartment is breached.
Passive fire protection is on the agenda wherever services pass through the building’s compartments.
Cable tray penetrations
Cable routes passing through walls and slabs.
Pipe penetrations
Compartment penetrations of combustible and non-combustible pipes.
Ventilation ducts
Perimeter sealing of duct penetrations.
Structural joints
Sealing of compartment wall and slab joints.
Floor-crossing shafts
Dividing vertical shafts between floors.
Blank openings
Temporary and permanent closing of reserved openings.
Views from the field.
Sample images from applications in different buildings and conditions.
The gap is closed; the resistance rating is restored.
The gap around the penetration is closed with materials that react to fire; the system restores the compartment’s resistance rating.
- Firestop sealantThe finish providing the seal against smoke at the surface.
- Fire-resistant fillingThe body filling the gap and preserving its integrity under heat.
- Service penetrationThe cable, pipe or duct that defines the system by its type.
- Fire compartmentThe wall or slab whose resistance rating is defined in the design.
A system for the type of penetration.
System selection is defined by the penetration type, the compartment’s resistance rating and the services’ behavior.
Sealant and filling systems
Perimeter sealing of pipe and cable penetrations.
Firestop pillows
A removable, re-usable solution for changing services.
Intumescent systems
Components that expand with heat to close the gap.
Joint tapes and sealants
Continuity sealing of compartment joints.
What is expected of a firestopping system.
Integrity against flame
The compartment’s resistance rating is preserved at the penetration.
Smoke sealing
The passage of smoke is brought under control.
Approved systems
Tested, certified system components.
Labeled records
Every penetration is labeled and reported.
Planned application
Zoned work while operations continue.
Audit readiness
Handover with a traceable file.
The scope follows the facility’s compartment layout.
The classification below is indicative only. The final scope is determined by the building’s fire compartmentation design and the site survey.
Firestopping, or another system?
If your need is closer to a different heading, let’s define the right system together.
Technical documents for members
Technical data sheets, safety data sheets and application specifications are available in the membership area open to corporate clients, architects and engineers. Access is free with membership.
Other special systems
Let’s make your fire compartments truly compartments.
Share your facility’s compartment layout and penetration points with us; let us assess the site and propose a recorded application program.

