Why might high UV exposure be detrimental to insulation materials?

High UV exposure can be particularly detrimental to insulation materials primarily because it can lead to material degradation. Ultraviolet (UV) radiation has enough energy to break down chemical bonds in the polymers that are commonly used in insulation materials. This breakdown can weaken the insulation’s structural integrity, leading to brittleness, cracking, or loss of flexibility over time. As the materials degrade, they may lose their thermal resistance properties, making them less effective in their insulation role.

Understanding the effects of environmental factors like UV radiation is crucial when selecting insulation materials, especially for applications where they will be exposed to sunlight or harsh outdoor conditions.