Size depends on thickness of structural wood panel sheathing. A special type, commonly available.
Size depends on thickness of roofing and deck material.
1-inch blue lath nails. For exterior application, use galvanized or coated nonstaining nails or fasteners. Predrilling is occasionally necessary in careful work where nails must be very close to panel edges. Select a drill bit of slightly smaller diameter than the nail to be used. Space nails about 6 inches apart for most work.