One of the fundamentals of passive fire protection is the compartmentalisation of buildings. To limit the spread of fire and smoke within a building we must compartmentalise: divide the space into several smaller sections in order to confine the fire in the only space it was declared, during the time necessary for evacuation.
How It's Done
To ensure the most effective partitioning of a building, the walls and floors of compartments must have a fire-resistance degree corresponding to the type of buildings (please refer to the UK building regulations)
It is important to note that these compartments are equipped and overlapped by multiple elements: doors, hatches, partitions, plastic, metal tubes, cables etc. All fire proofing caulks around these elements must therefore make it possible to reconstruct the fire-resistance degree of the wall by providing fire resistance at least equal to that of the building structure.
It is via this method that we can achieve a powerful subdivision.