Which type of insulation installation is prohibited around certain wiring types?

Certain types of insulation installation are restricted around specific wiring types to ensure safety and prevent potential hazards. For instance, foam-in-place insulation, loose fill, and rolled insulation can all pose risks when installed around electrical wiring. Each of these insulation types can lead to overheating or create a fire hazard if they come into direct contact with certain wiring because they can insulate heat generated by the wires.

When insulation traps heat, it can exceed the temperature ratings of the wires, leading to insulation breakdown and even initiating a fire. Therefore, building codes and safety standards often prohibit the use of any insulation that can conceivably cover or come into close proximity with wiring that generates heat unless they are specifically designed to do so.

Thus, it's important to consult local electrical codes and guidelines which specify how and where insulation can be installed relative to various types of wiring, resulting in the prohibition of these insulation installation methods around certain wiring types.