FIRE STOPPING LONDON | NATIONWIDE
Fire Stopping is typically used in buildings to prevent the spread of a fire. The fire is contained by creating fire resistant compartments throughout the building, either horizontally or vertically, which subdivide the building.
In addition, it must be ensured that buildings are fire stopped to restrict both vertical and lateral fire spread. This is done by fire stopping all openings and gaps within a building.
As stated by Wikipedia, A fire stop is a passive fire protection system made up of various components and used to seal openings and joints in a fire-resistance-rated wall or floor assembly. Penetrating cables are known as multi-cable transits (MCTs). Firestops are designed to fireproof a wall or floor assembly, impeding the spread of fire and smoke by blocking openings with fire-resistant materials.