Final answer:
Firestops are solid materials used to prevent or limit the spread of fire in various areas of a building. They are made of fire-resistant materials such as sealants, mineral wool, or intumescent materials.
Step-by-step explanation:
In the context of fire safety in construction, the solid materials mentioned in the question are known as firestops. Firestops are used to prevent or limit the vertical and horizontal spread of fire and the products of combustion in various areas of a building. They are commonly used in hollow walls or floors, above false ceilings, in penetrations for plumbing or electrical installations, in penetrations of a fire-rated assembly, or in cocklofts and crawl spaces.
Firestops are typically made of materials such as fire-resistant sealants, mineral wool, or intumescent materials. These materials help to compartmentalize the building and prevent the spread of fire and smoke.
For example, in a hollow wall, a firestop may consist of fire-resistant sealant applied around pipe or cable penetrations to seal off any gaps that could allow fire to spread. This helps to contain the fire within that specific area and prevent it from spreading to other parts of the building.
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