Which of the following is the minimum headlap for tile roofing?

The minimum headlap for tile roofing is 3 inches. Headlap is the vertical overlap between adjacent rows of tiles and is crucial for ensuring that water runs off the roof surface effectively without penetrating beneath the roofing material. A headlap of 3 inches allows for adequate water drainage and helps to create a weather-tight seal against wind and rain, minimizing the potential for leaks. This measurement is particularly important to maintain the integrity of the roofing system, as insufficient overlap can lead to water infiltration and damage over time. Ensuring proper headlap is a key consideration for achieving the longevity and performance of tile roofs.