Fire doesn’t compromise—neither should your building’s protection. Every year, inadequate firestopping turns containable incidents into devastating disasters across Ireland. The difference between life and death often hides in wall cavities, ceiling penetrations, and service ducts that most people never see.
This guide reveals the critical mistakes that plague Irish construction projects and provides actionable solutions to ensure your building stands ready when disaster strikes. Whether you’re overseeing a Georgian restoration in Drogheda or a modern commercial development in Dublin , the principles remain the same: proper firestopping saves lives.

Table of Contents
- The Hidden Dangers of Substandard Firestopping in Irish Buildings
- Five Fatal Firestopping Failures We See Every Day in Ireland
- How to Ensure Compliant Firestopping in Your Irish Building Project
- Beyond Basic Firestopping: Creating a Total Protection Strategy
- The Critical Difference: Fireproofing vs. Firestopping
- Protecting Irish Lives and Property: The Bottom Line

The Hidden Dangers of Substandard Firestopping in Irish Buildings
Picture this: A small electrical fire ignites in a maintenance room. In a properly firestopped building, it stays there—contained, manageable, with minimal damage. In a poorly firestopped structure? The fire races through hidden pathways, engulfing multiple floors within minutes.
This isn’t hypothetical. We’ve witnessed the aftermath firsthand across Ireland.
Firestopping means installing specialised materials to maintain fire resistance where services penetrate walls and floors. These systems prevent fire and smoke from spreading throughout buildings. Unlike sprinklers that may malfunction, passive fire protection requires no activation—it’s always working, provided it’s installed correctly.
In Ireland’s unique building landscape, where centuries-old structures stand alongside modern developments, proper compartmentation is critical. Part B of the Building Regulations demands it for good reason—it gives people minutes to escape while allowing firefighters to tackle blases effectively. Our fire safety consultants can help ensure compliance.
Five Fatal Firestopping Failures We See Every Day in Ireland
1. The Wrong Products in the Wrong Places
“Sure, any fire sealant will do.” This dangerous misconception leads to failures. We recently inspected a Dublin office building where ordinary silicone had been used instead of intumescent sealant around pipe penetrations. In a fire, this would have melted away in seconds.
Different penetrations need specific solutions suited to Irish building practices. Plastic pipes require fire collars that crush the melting material during fires. Metal pipes need specialised wraps that account for thermal expansion. Cable trays demand intumescent pillows or sealants that expand when heated. Browse our product selection for the right solutions.
2. The Inspection Gap
“Once it’s behind the wall, who’ll know the difference?” This attitude costs lives. Proper documentation isn’t just paperwork—it’s proof that critical safety systems will perform when needed. Every firestop installation should be photographed, documented, and recorded for future reference.
We recently assessed an apartment complex in Dublin where 73% of firestops failed passive fire safety audits despite having certification paperwork. The installers had taken shortcuts, assuming no one would check their work. They were wrong.
3. The Coordination Problem
The plumber installs pipes. The electrician runs cables. The HVAC team adds ducts. But who seals the penetrations properly? Without clear responsibility, critical gaps remain unsealed.
In one Dublin hospital extension, we found over 200 unsealed penetrations between departments, creating paths for fire to spread between wards. No single trade had taken ownership of firestopping, leaving dangerous gaps throughout the building. Our services include coordination between trades.
4. The Renovation Risk
Ireland’s historic buildings present unique challenges. During renovations, new services often penetrate existing fire barriers without proper consideration for maintaining fire compartmentation.
A 19th-century building converted to apartments had dozens of unsealed penetrations where modern services had been routed through original walls. Each one compromised the building’s fire safety strategy. For such buildings, the Interim Remediation Scheme might be applicable.
5. The Cavity Issue
Hidden spaces between walls, above ceilings, and below floors create routes for fire to travel unseen through buildings. Irish building regulations specifically mandate cavity barriers to prevent this, yet they’re frequently overlooked or improperly installed.
Learn more about us and our commitment to fire safety, or contact us today for a comprehensive assessment of your building’s fire protection needs.

How to Ensure Compliant Firestopping in Your Irish Building Project
Work with Certified Specialists
Not all installers understand the complexities of Irish building regulations. Choose contractors who specialise in passive fire protection and can demonstrate knowledge of TGD Part B requirements and Irish standards like I.S. EN 1366-3.
Ask potential contractors about their training, certification, and experience with similar projects in Ireland. Request references and examples of documentation from previous installations. Our team of fire safety consultants can guide you through this process.
Demand Clear Documentation
Every firestop should be labeled, photographed, and recorded. A proper firestopping register includes:
- Exact location of each firestop
- Product specifications and fire ratings
- Installation date and installer details
- Photographic evidence of proper installation
- Compliance with specific Irish regulatory requirements
This documentation isn’t just for inspectors—it’s critical for future maintenance and building modifications.
Implement Regular Inspections
Firestopping isn’t “fit and forget.” Building services change, penetrations get modified, and even the best installations can deteriorate over time. Regular passive fire safety audits should be part of your building maintenance schedule.
We recently assessed a ten-year-old office building in Waterford where 40% of originally compliant firestops had been compromised by subsequent work. No one had checked them since initial installation.
Understand the Role of Fire Doors in Your Firestopping Strategy
While penetration seals address service openings, fire doors protect necessary access points between compartments. A properly specified and installed fire door assembly contains fire and smoke within compartments, but only if:
- The door carries the appropriate fire rating for its location
- All hardware (hinges, latches, closers) maintains that rating
- Gaps around the door are within specified tolerances
- The door is never propped open or modified
- Regular maintenance ensures continued performance
Fire doors must meet I.S. EN 1634-1 standards and undergo regular inspection to verify their condition. Our fire door upgrade services can bring existing doors up to current requirements.
Beyond Basic Firestopping: Creating a Total Protection Strategy
Effective fire protection in Irish buildings requires a systems approach. Beyond penetration seals and fire doors, consider:
- Fire damper testing: These mechanical devices prevent fire spread through ventilation systems but require regular testing
- Structural steel protection: Intumescent coatings preserve structural integrity during fires, preventing collapse
- Cavity barrier continuity: Ensure barriers form continuous protection, particularly at junctions
- External fire spread prevention: Modern cladding systems require careful detailing to prevent fire spread between floors
For buildings undergoing remediation, the Interim Remediation Scheme provides a structured approach to bringing existing structures up to current standards.
The Critical Difference: Fireproofing vs. Firestopping
Though often confused, these terms represent different aspects of passive fire protection in Irish construction:
Fireproofing applies materials to structural elements, increasing their fire resistance and maintaining structural integrity during fires. This includes spray-applied materials, board systems, and industrial coatings.
Firestopping specifically seals openings, penetrations, and joints to maintain fire compartmentation. Both work together in a fire protection strategy, but understanding the distinction ensures appropriate methods for each requirement.

Protecting Irish Lives and Property: The Bottom Line
Poor firestopping isn’t just a regulatory violation—it’s a deadly gamble with people’s lives. The performance of any passive fire protection system depends on both material quality and installer expertise who understands Irish construction methods.
Remember these critical points:
- Different penetrations require specific solutions—there is no universal approach
- Documentation proves compliance and enables future maintenance
- Regular inspection identifies compromised firestops before they fail in a fire
- A full approach includes fire doors, dampers, and structural protection
- Investment in proper firestopping protects lives, property, and your legal position
At Firestoppers, we’ve seen the consequences of poor firestopping firsthand across Ireland. From minor non-compliances to serious failures, we’ve documented the full spectrum of issues in Irish buildings. More importantly, we’ve developed systems and approaches that ensure your building provides the protection your occupants deserve.
For a no-obligation assessment of your building’s passive fire protection or to discuss specific firestopping solutions for your project, contact our team today. We’ll help you navigate the complexities of Irish fire regulations with clear, practical advice based on decades of experience in Ireland’s unique building landscape.
Learn more about our previous successful projects across Ireland and our complete range of services.
Please note: While this guide provides valuable information, always consult qualified professionals regarding your specific fire protection needs in accordance with Irish building regulations.