Firestopping

 
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What is Firestopping?

A firestop or firestopping is a form of passive fire protection that is used to seal around openings and between joints in a fire resistance wall or floor assembly. Firestops are designed to maintain the fireproofing of a wall or floor assembly allowing it to impede the spread of fire and smoke.

Firestops are used in:

  • Electrical, mechanical, and structural penetrations

  • Unpenetrated openings (such as openings for future use)

  • Re-entries of existing firestops

  • Control or sway joints in fire-resistance-rated wall or floor assemblies

  • Junctions between fire-resistance-rated wall or floor assemblies

  • Head-of-wall (HOW) joints, where non-load-bearing wall assemblies meet floor assemblies

 

Putty Pads

Putty pads are designed to maintain fire resistance and acoustic integrity in dry-lining partitions where a plastic or metal electrical socket box has been fitted. Their use improves fire safety, provides soundproofing from room to room, and reduces air leakage within properties, thus reducing energy usage.

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Pipe and Wire penetrations

Penetration firestopping systems and fire resistive joint systems are a passive means of fire protection. There is no movement or activation required. These passive systems are mainly used to compartmentalize a fire and keep it from spreading for a period of time long enough that occupants can evacuate the building and so firefighters can perform initial lifesaving tasks.

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Membrane Penetration

Membrane Penetration Firestop systems protect penetrations that pass through part of the barrier, but not the entire barrier. Some examples are outlet boxes, sink drains, or conduit that leads from a back-box to the space above the ceiling.