How many nails should I user per ONDULINE sheet?

14 screws should be drilled per sheet.
• 5 screws at each corrugation at the end overlap or eaves.
• 3 screws at first intermediate purlin of the sheet.
• 3 screws at second intermediate purlin of the sheet.
• 3 screws at third intermediate purlin of the sheet.
• Screws should be drilled at each corrugation at the end
overlap and side overlap.
To have a long lasting and guaranteed roof, it is mandatory
to follow the nailing order and pattern. Consult the Onduline Fixing Guide for full instructions.

Onduline Fixing