Cut Edge Corrosion Repair | Giromax Technology
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Cut Edge Corrosion Repair

Cut edge corrosion at the sheet laps of profiled metal roofs and cladding is a common problem faced by commercial buildings. If left neglected for too long, corrosion can lead to costly problems regarding health and safety, dilapidations and reputational damage. With our help, you can restore the condition of your commercial property with an advanced coating system designed for repairing and treating cut edge corrosion.

Problem: Cut Edge Corrosion

When profiled metal sheets are cut to fit the bespoke dimensions of a commercial unit, any factory-fitted protection against weathering is lost, leaving edges exposed to the elements. This is a particular problem at the lap joints as capillary held rainwater can begin to penetrate through protective layers, damaging sheets, fixtures and fittings.

Consequently, corrosion at the cut edges is often accelerated, and if left untreated for too long, can develop away from the edge, destroying the weather-sealed lap joint and gutter overhang.

Issues can often be seen in the form of edge peel, discoloration, blistering, spot corrosion and in severe cases, leaks and penetrating water damage. When this occurs, the advice is typically to replace profiled metal sheets, which can be costly, time consuming and disruptive.

Common Issues Cut Edge Corrosion Repair

Common Issues

  • Capillary held rainwater at lap joints can accelerate corrosion
  • Untreated corrosion can begin to develop further down profiled sheets, destroying joints and gutters
  • Cut edge corrosion can cause significant damage, including roof leaks and health and safety concerns
  • Replacing metal roof sheets and cladding can be costly
Contractor Product - key benefits

What can you expect

  • Fully moisture tolerant formula that uses laminar flake technology
  • Unaffected by UV, weather and temperature extremes
  • Cures to a elastomeric coating that can withstand normal surface movement


Giromax® Edgecoat is a BBA certified cut edge corrosion coating system. It is completely moisture tolerant, meaning it works just as effectively on damp surfaces to provide a matchless, weatherproof and cost effective solution that extends the life of a commercial roof for up to 15 years.

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Giromax® Data sheets + Specifications, Girocote Data sheets.