Which factor can lead to accelerated aging of insulation materials?

Ultraviolet (UV) radiation exposure is a significant factor that can lead to the accelerated aging of insulation materials. Over time, UV radiation from sunlight can cause photochemical reactions in many types of insulation, particularly plastics and rubber-based materials. This exposure often results in the breakdown of chemical bonds, leading to degradation, loss of flexibility, brittleness, and reduced effectiveness in insulating properties.

Materials that are not specifically designed to withstand UV exposure can become discolored and lose their structural integrity more quickly when subjected to prolonged sunlight. This degradation can significantly shorten the lifespan of insulation materials, making it crucial to consider UV exposure in environments where insulation is used.

In contrast, low humidity levels, consistent temperature control, and regular inspection and maintenance typically contribute to the longevity and effectiveness of insulation materials rather than hastening their deterioration.