Which method can improve insulation performance in humid environments?

Applying hydrophobic treatments is particularly effective in improving insulation performance in humid environments because it helps repel water. In humid conditions, moisture can infiltrate insulation materials, decreasing their thermal resistance and ultimately leading to reduced efficiency in insulation performance. By making the insulation hydrophobic, the material becomes less susceptible to absorbing moisture, ensuring that its insulating properties remain intact.

In contrast, while using thicker insulation or increasing the number of layers can enhance thermal resistance, they may not specifically address the issue of moisture absorption in humid settings. Utilizing metal insulators, on the other hand, can lead to thermal bridging, which can further complicate insulation effectiveness rather than improve it. Thus, hydrophobic treatments are focused on enhancing the resilience of insulation materials against humidity, making them a superior choice for maintaining performance in such environments.