What is the curing time for a built-up roof system using hot asphalt?

The curing time for a built-up roof system using hot asphalt is generally in the range of 2 to 3 hours. This time frame allows the asphalt to adequately cool and set, ensuring that the layers adhere properly while preventing structural problems that can arise from premature exposure to wind, rain, or foot traffic. Factors such as ambient temperature, humidity, and the thickness of the applied asphalt can influence the exact curing time, but the standard expectation is within this 2 to 3-hour window. This duration is crucial for ensuring the integrity and longevity of the roofing system, as improper curing can lead to complications such as inadequate adhesion and potential failure of the roofing materials.