What role does thermal insulation play in firestop systems?

The role of thermal insulation in firestop systems is crucial as it protects against heat transfer, thereby enhancing fire resistance. This means that during a fire, thermal insulation helps to slow down the transmission of heat from one side of a fire barrier to the other. This is vital in allowing more time for occupants to escape and can reduce the potential for the fire to spread between compartments in a building. Firestop systems work by sealing openings and joints in fire-rated wall and floor assemblies, and the inclusion of thermal insulation ensures that these barriers perform effectively under fire conditions. By resisting the flow of heat, thermal insulation contributes to the overall integrity of the firestop system, making it an essential component for maintaining safety and compliance with fire protection standards.