How is roofing asphalt described during hot weather conditions?

During hot weather conditions, roofing asphalt is described as unstable. This is primarily because high temperatures can cause the asphalt to soften and become more susceptible to deformation. When the asphalt is unstable, it may not provide the necessary support and integrity needed for the roofing system. This can lead to issues such as sagging or even blistering of the roof surface.

Understanding the instability of roofing asphalt in hot weather is crucial for roofing professionals, as it impacts the application process, maintenance requirements, and the overall longevity of the roofing system. Suitable precautions may be taken during installation or renovation, such as scheduling work during cooler parts of the day or using products specifically designed to withstand higher temperatures. This knowledge helps ensure the performance and durability of built-up roofing systems in varying climate conditions.