Perimeter fastening for tile roofing areas from either side of the hips or ridges and edges of eaves and gable rakes include _____.

The requirement for perimeter fastening for tile roofing areas is critical to ensure the integrity and durability of the installation, particularly in areas that are more susceptible to wind uplift and other environmental factors. The correct specification states that three tile courses should be used for securing the perimeter, with a minimum length of 36 inches. This standard is designed to provide sufficient coverage and anchoring at the hips, ridges, and edges of the eaves and gable rakes, which are key points where the roofing system may experience increased stress.

Using three courses ensures that the fasteners are adequately spaced to resist the forces acting on the roof, while the 36-inch minimum length helps to ensure that the fastening extends beyond the vulnerable edges. This method not only increases the overall stability of the roofing system but also helps to prevent potential water intrusion or damage that can occur if tiles are improperly secured.

Other options do not meet the established guidelines for effective perimeter fastening or may over-specify the requirements beyond what is typically necessary for ensuring that the roofing system is both secure and functional. Therefore, the standard of three tile courses with a minimum of 36 inches is the most suitable choice in this context.