Perimeter fastening for tile roofing requires not less than how many inches of tile courses?

Perimeter fastening for tile roofing requires not less than how many inches of tile courses?

• A. two tile courses not less than 36 inches
• B. three tile courses not less than 36 inches
• C. three tile courses not less than 24 inches
• D. four tile courses not less than 36 inches

Answer: (B)

Edge wind uplift resistance in tile roofing hinges on securing the perimeter long enough to distribute forces across multiple tiles. The required practice is to fasten not less than three tile courses and maintain not less than 36 inches of perimeter fastened tile. This combination ensures the edge is anchored across enough tiles to resist uplift and that the fastening runs are long enough to be effective. Options with only two courses fall short of the required redundancy, a shorter 24-inch length doesn’t provide enough edge length to transfer loads reliably, and insisting on four courses goes beyond the stated minimum, which is why the three-course, 36-inch standard is the correct requirement.

Edge wind uplift resistance in tile roofing hinges on securing the perimeter long enough to distribute forces across multiple tiles. The required practice is to fasten not less than three tile courses and maintain not less than 36 inches of perimeter fastened tile. This combination ensures the edge is anchored across enough tiles to resist uplift and that the fastening runs are long enough to be effective. Options with only two courses fall short of the required redundancy, a shorter 24-inch length doesn’t provide enough edge length to transfer loads reliably, and insisting on four courses goes beyond the stated minimum, which is why the three-course, 36-inch standard is the correct requirement.