Profiled metal roofing – lead-head nails damaged or missing

Cause

The lead heads were damaged during roofing installation

Repair

  • remove nail shank and replace with Class 4 (heavy zinc or zinc-tin coatings or zinc alloy coated heads) spiral-shank, spring-head nails with a waterproof sealing washer. Do not use lead head nails with zinc/aluminium or aluminium/zinc alloy coated steel roofing

Cause

Nails have worked loose over time as a result of movement in the roof

Repair

  • remove nail shank and replace with Class 4 (heavy zinc or zinc-tin coatings or zinc alloy coated heads)  spiral-shank, spring-head nails with a waterproof sealing washer. Do not use lead head nails with zinc/aluminium or aluminium/zinc alloy coated steel roofing