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Firestop and fireblock sealants have two commonalities: they both contain the word “fire” and are both an integral part of life safety. When a fire occurs, smoke and fire can spread quickly. The amount of time it takes to spread depends on structural openings, which feed the fire with oxygen and allow it to travel from room to room and floor to floor. Firestop or fireblock sealants allow responders to rescue occupants and extinguish the fire with the least amount of damage.
A structure is made up of floors, walls and ceilings. At intersections where they meet, there are voids or joints. Filling joints with a firestop or fireblock sealant will help create a “compartment.” In one-room structures, the fire will be sealed within the room - no outside air will fuel the fire and there are no joints for the fire to escape until the walls, floor, and ceiling are compromised. In the case of multiple-room structures, the goal is compartmentalization - to contain the fire in the room in which it originated for as long as possible.
After the floors, walls and ceilings are constructed, pipes, wires, cables, ducts, and other components can be installed. Unfortunately, when a hole is cut it is not the exact size of the penetrating item to be installed, which results in an annular space. This space, which can give a fire momentum, must be filled. A firestop or fireblock sealant can be used to prevent the passage of flame and smoke. It can also restrict the flow of oxygen from one compartment to the next. |
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Fighting fire with Sealants in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 16, N° 7 (07-08/2009)
