Which type of fire protection prevents heat transfer?

Thermal protection is specifically designed to prevent heat transfer, which is critical in firestop systems. This type of protection involves materials and systems that can resist the transfer of heat from one area to another, thereby slowing down or preventing the spread of fire and maintaining the structural integrity of a building during a fire event. Thermal protective measures include insulation materials that reduce heat conduction and barriers that can withstand high temperatures.

In contrast, acoustic protection focuses on sound transmission reduction, visual protection pertains to visibility or aesthetics, and chemical protection involves materials that prevent or mitigate chemical reactions. Each of these types serves a different purpose and does not specifically address the challenge of heat transfer during fire situations. Thus, thermal protection is the most appropriate answer when considering measures to prevent heat transfer in the context of fire safety.