Which factors determine the limits of insulation use?

The correct choice focuses on the material composition, which is crucial in determining the effectiveness and limits of insulation. The material composition dictates several important properties, such as thermal conductivity, dielectric strength, and resistance to various environmental conditions. Different materials have varying abilities to withstand temperature changes, moisture, and chemical exposure, which directly impacts their insulating qualities and limitations in different applications.

For example, some materials may perform well in dry environments but fail under high humidity conditions, while others may be vulnerable to degradation from exposure to certain chemicals found in a given environment. The choice of insulation material can also affect safety ratings and compliance with regulations, making material composition a fundamental factor in determining the overall suitability and performance of insulation in various settings.