What is a common drawback of using reflective coatings on roofs?

Using reflective coatings on roofs can lead to potential aesthetic issues, which is a common drawback associated with their application. While reflective coatings are designed to improve energy efficiency by reducing heat absorption and lowering cooling costs, their appearance can sometimes be a concern. For instance, depending on the color and formulation of the reflective coating, it may not blend well with existing architectural features or may alter the visual consistency of the roofline. This can be especially relevant for buildings where design and aesthetics are crucial considerations, such as in historical districts or residential areas.

In contrast, durability, energy efficiency, and reduction in roof weight are generally viewed as benefits associated with reflective coatings. They enhance the long-term performance of roofs and can contribute positively to overall building energy management.