What is a significant factor to consider when selecting roofing materials?

When selecting roofing materials, thermal performance is a crucial factor to consider because it directly impacts energy efficiency, comfort, and durability of the building. Materials with good thermal performance can reflect heat, reducing cooling costs in hot climates, or provide insulation in colder areas, thereby maintaining a consistent indoor temperature. This not only enhances energy efficiency and lowers utility bills but also contributes to the overall lifespan of the roof since extreme temperature fluctuations can lead to material degradation.

In addition to thermal performance, other factors like local climate, building codes, and the specific application of the roof also play important roles in the decision-making process, but thermal performance stands out as a key consideration for both short-term energy savings and long-term structural integrity.