Which trade applies heat-resistant materials to structural steel and sprays refractory material on tanks?

The correct choice is fireproofer. This trade specifically applies heat-resistant materials to structural steel as a means to protect the steel from the damaging effects of extreme heat during a fire. Fireproofing is essential for maintaining the integrity of the structural components in a building, ensuring that they can withstand high temperatures for a certain period, thereby providing safety to the occupants and allowing more time for evacuation and firefighting efforts.

Additionally, fireproofers are responsible for spraying refractory materials on tanks, which not only insulates against extreme heat but also reinforces the structure. This process is crucial in industries where heat exposure is significant, such as oil and gas, chemical manufacturing, and other sectors that require the use of high-temperature tanks and equipment.

Understanding the role of fireproofers highlights the importance of fire safety and compliance in construction and industrial applications.