Copper clout nails are commonly used in roofing applications to secure roofing materials to the roof deck or substrate. They are often used with slate, clay, or concrete roofing tiles, as well as with asphalt shingles and metal roofing panels.
Copper clout nails are preferred for roofing applications because they are highly resistant to corrosion, which helps to prevent leaks and other damage over time. They also provide a secure hold that can withstand strong winds and other weather conditions.