Overview

Fire stopping and sealing are crucial components in the design and construction of buildings, aimed at preventing the spread of fire and smoke through walls, floors, and ceilings. Effective fire-stopping and sealing measures are essential to enhance the safety of occupants, protect property, and ensure compliance with building regulations and fire codes.

Following a compartmentation survey, breaches that have been identified will need to be appropriately sealed to ensure compliance.

What is Fire Stopping & Sealing? 

Fire stopping and sealing are critical components of a building’s passive fire protection system, designed to prevent the spread of fire, smoke, and toxic gases through openings and gaps in fire-resistance-rated walls, floors, and ceilings. These techniques are essential for maintaining the integrity of fire compartments within a building.

Fire stopping solutions will usually include the use of fire-resistant materials which expand when exposed to high temperatures to fill the gaps, such as:

  • Firestop pillows
  • Intumescent sealants 
  • Collars and wraps 
  • Dampers 

Common Forms of Fire Stopping & Sealing Include:

Intumescent Materials

Expand when exposed to high temperatures, forming a fire-resistant barrier that seals gaps around penetrations.

Fire-Resistant Sealants

Used to seal joints and gaps, these materials maintain their integrity under fire conditions.

Fire Sleeves & Collars

Applied around pipes, these expand under heat to seal the pipe penetration.

Fire-Resistant Mortar

Used to fill larger openings, this mortar resists fire and smoke passage.

Fire Boards & Batts

Insulating panels that can be cut to fit around penetrations and sealed with fire-resistant coatings.

 

Common Fire Sealing Applications:

Perimeter Sealing

Around the edges of walls, floors, and ceilings to prevent fire spread through the building envelope.

Joint Sealing

Sealing of expansion joints or construction joints that might open or crack under fire conditions.

Service Penetrations

As with fire stopping, this includes sealing around cables, pipes, and ducts, particularly in locations where services pass between compartments.

Why are Fire Stopping & Sealing Measures Important?

  • Life Safety: Helps contain fire and smoke to their origin, providing more time for safe evacuation.
  • Property Protection: Limits the spread of fire, minimising damage to the building and its contents.
  • Regulatory Compliance: Ensures that the building meets fire safety codes and standards, which are often legally required.

Both fire stopping and sealing are crucial for ensuring that a building’s compartmentation strategy is effective in the event of a fire. They help maintain the fire-resistance rating of barriers, preventing the premature failure of fire compartments.

About Our Service

Our fire stopping & sealing services ensure your building is adequately protected against the spread of smoke and fire. We carry out an initial survey to identify a building’s service penetrations and choose the most appropriate fire stopping and sealing solution to seal each opening. 

Why Work With Us? 

All our fire stopping and sealing work is carried out by qualified and experienced fire safety consultants, to ensure proper and safe installation to the intended protection level. We offer a wide range of solutions for our clients, and are there for you every step of the way, giving you peace of mind that your building meets the highest standards in fire safety. 

Next Steps

If you would like a bespoke quote to carry out any passive fire protection works please contact us on 0330 002 0648 or email us at info@firesafetyexpress.co.uk.

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