Passive Fire Learning Centre
Understanding Service Penetrations
Learn how pipes, cables and ducts passing through fire-rated walls and floors can affect fire compartmentation.
Service Penetrations
Openings Through Fire-Rated Walls & Floors
Buildings contain many services such as pipes, electrical cables, conduits and air conditioning systems.
These services often pass through fire-rated walls and floors, creating openings in the fire compartment.
If these penetrations are not properly protected, fire and smoke can spread rapidly through the building.
Common Penetration Types
Typical Building Services
Fire Stopping Systems
Maintaining Fire Compartmentation
Fire stopping systems are used to seal service penetrations and maintain the fire resistance of walls and floors.
Different penetration types require different tested systems depending on the service, substrate and fire rating requirements.
These systems may include: fire collars, sealants, wraps, boards, pillows and fire-rated mortars.
Did You Know?
Many passive fire defects are hidden above ceilings, inside risers and within service spaces.
Buildings are constantly changing over time as new services, cables and systems are installed. These works can create unprotected openings through fire-rated walls and floors if proper fire stopping systems are not installed.
Common Defects
Typical Penetration Issues
Inspections & Compliance
Why Penetration Inspections Matter
Service penetrations are one of the most common passive fire defects identified during building inspections.
Inspections help identify damaged, missing or non-compliant fire stopping systems before they become major safety risks.
Proper documentation, reporting and maintenance are important for ongoing compliance management.
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