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Passive Fire Stop Systems

Engineered detail solutions compliant with EN and UL standards

Passive fire stop systems are one of the most critical components determining a building's fire performance. Correct design and installation of these systems not only limits the spread of fire, but also guarantees the building's compliance with international standards.

We base our passive fire stop solutions on internationally recognized fire regulation and test systems such as EN (European Norm) and UL (Underwriters Laboratories).

Why Passive Fire Stop Systems?

Fires are far more common and can have far more fatal consequences than we tend to think. On average, 3.8 million fires occur worldwide every year, resulting in approximately 45,400 deaths (Source: CTIF – World Fire Statistics 2016).

However, one of the most critical facts about fires is this:
Most fire-related deaths are not caused directly by flames, but by smoke and toxic gases. Studies show that approximately 75% of fire deaths result from smoke exposure (Source: NFPA).

Even more striking is this:
57% of people who die in fires are not found in the room where the fire started, but in other areas where the fire spread. (Source: NFPA Fire Protection Handbook). This clearly shows what a major risk the uncontrolled spread of fire represents.

The dense smoke generated during a fire severely reduces visibility. Approximately 47% of survivors are unable to see beyond 3.5 meters. This makes it harder for people to find escape routes and makes evacuation time critical.

The Role of Passive Fire Stop Systems

This is precisely where passive fire stop systems come into play.

Passive fire stop solutions, by delaying or preventing the spread of fire, smoke and toxic gases inside a building:

  • Limit the spread of fire between compartments
  • Keep escape routes safe for longer
  • Give people critical time to evacuate
  • Support the fire resistance of structural elements

In modern buildings, the gaps in walls and floors created especially by MEP system penetrations are the fastest points for fire to spread. If these gaps are not sealed correctly, fire and smoke can reach different areas within seconds.

Passive fire stop systems contain flame, smoke and heat within the designated fire zone at electrical and mechanical shaft penetrations and architectural expansion joints, preventing the spread of fire for a defined period of time.

Fire safety does not begin only with extinguishing a fire, but with controlling its spread.

Passive fire stop systems:

Passive fire measures create smoke-free, safe escape corridors during a fire, allowing people to leave the building safely.

With standards-compliant design and application, fire spread is brought under control, and loss of life and property can be significantly reduced.

Standards-Based Approach

The performance of passive fire stop systems can only be guaranteed through tested and certified system solutions.

European Standards (ETA / EAD / EN)

  • ETA (European Technical Assessment)
  • EAD (European Assessment Document)
  • EN 1366-3 → Service penetrations (penetration seals)
  • EN 1366-4 → Joint systems (linear joints)
  • These standards evaluate fire resistance based on EI (Integrity & Insulation) criteria.

American Standards (UL / ASTM)

  • UL 1479 → Penetration firestop systems
  • ASTM E814 → Fire tests for through-penetration systems
  • UL 2079 → Joint systems
  • UL 263 / ASTM E119 → Structural elements
  • In UL systems, performance is evaluated based on F-rating (flame passage) and T-rating (heat transfer) criteria.

Our Application Areas (Tested and Certified Systems)

Shaft and Penetration Sealing (Firestop Systems)

The penetration points where MEP systems pass through walls and floors are critical weak points for fire spread.

Applications:
  • Pipe, cable and cable tray penetrations
  • Combined penetrations
  • Large-diameter shaft openings
These areas are sealed using EN or UL tested system solutions.

Joint Systems (Linear Joint Protection)

Joints exposed to structural movement pose a critical risk during a fire.

Applications:
  • Expansion joints
  • Shear wall junctions
  • Floor junctions
  • Façade junctions
These systems are applied using solutions tested under UL 2079 and EN 1364-3, providing both fire and smoke sealing.

Fire Protection for Steel Structures

Steel structural elements rapidly lose their load-bearing capacity at high temperatures.

Applications:
  • Intumescent fire paints
  • Fire resistance coatings (R30 – R120)
These systems are designed and applied in accordance with UL 263 / EN 13381 tests.

Electrical Cable Fire Protection Systems

In areas with a high concentration of electrical cables and high fire risk, such as cable gallery rooms, fire can spread rapidly along cables.

Applications:
  • Insulating cables with fire-retardant coating
  • Insulation of trays and support systems
  • Ensuring system integrity through passive measures such as fire doors and curtains
These solutions are implemented in accordance with UL, FM or EN standards.
HOW WE WORK?

FACE Engineering Application Process

In every project, we follow a disciplined engineering process from design to field application, and from documentation to handover.

Project Analysis

Project-specific needs assessment, load and system analysis are carried out.

System Design

Details compliant with EN and UL standards are determined

Field Application

Installation is carried out exactly according to the design, under quality control.

Documentation & Handover

As-built reporting, traceability and project handover are completed.

Passive fire stop systems are often treated on site as a mere standard application. Yet real safety is achieved through correct design, correct detailing and engineering control.

Our approach at FACE:

We do not just apply passive fire solutions; we manage the entire process, from project to field, with engineering discipline. Because we know that even the smallest detail can make a critical difference in a fire.