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FIRESTOPPING AND SEALING FOR ELECTRICAL PENETRATIONS
Unprotected or improperly protected electrical penetrations can allow fire and smoke to spread rapidly. These openings allow fire to travel between rooms easily, and can be one of the major reasons a fire gets out of control.
Openings include:
- Electrical through-penetrations
- Mechanical through-penetrations
- Structural through-penetrations
- Unpenetrated openings
- Re-entries of existing firestops
- Control or sway joints
- Junctions between fire-resistance-rated wall or floor assemblies
- “Head-of-wall” (HOW) joints, where non-loadbearing wall assemblies meet floor assemblies