How far above insulation materials must the required insulation shield terminate?

The required insulation shield must terminate at least 2 inches above insulation materials to ensure safety and proper functioning of the mechanical system. This distance is established to prevent potential contact between hot surfaces and insulation, which could lead to overheating or a fire hazard. The insulation shield acts as a barrier, protecting the insulation from the heat produced by ducts, vents, or other components of the mechanical system.

Maintaining this distance is critical for the longevity of both the insulation and the system itself, as excessive heat buildup could degrade the insulating material over time. Additionally, this requirement is aligned with industry best practices and ensures compliance with the International Mechanical Code, which emphasizes safety in mechanical installations.