What type of material should hangers and brackets be made of according to the code?

Hangers and brackets must be made of noncombustible material according to the code to ensure safety and compliance with fire prevention standards. Noncombustible materials, such as metals, provide structural integrity and withstand high temperatures without contributing to fire hazards. This is critical in mechanical systems, especially in environments where heating elements or other potential ignition sources exist. Using noncombustible materials prevents fire from spreading and protects the integrity of the mechanical systems installed, which supports overall building safety.

In instances where combustible materials are used, there could be significant risks in the event of a fire. Reinforced materials may not necessarily address fire safety concerns unless they are also noncombustible. Similarly, flexible materials may not provide the necessary support or durability required for hangers and brackets, potentially leading to mechanical failures. Thus, the code prioritizes noncombustible materials to enhance safety and performance standards.