Total Cladding & Roofing
Cut Edge Corrosion Repair
Metal roof corrosion
Treat cut edge corrosion before sheet edges and laps deteriorate further.
Cut edge corrosion commonly develops where protective coatings thin or fail at profiled metal sheet edges and laps. The repair must address preparation, corrosion extent, lap condition, fixings, sealants and the compatibility of the selected treatment.
Answer first
What is cut edge corrosion?
Cut edge corrosion is deterioration at exposed or vulnerable edges of coated metal roof sheets, often around end laps and eaves. Moisture and contaminants can attack the metal where the protective finish is weakest. Early treatment may reduce further loss, but badly deteriorated sheets or laps may require more substantial repair or replacement.
What you should receive
A useful decision, not another vague contractor conversation.
The level of detail depends on the project stage, but the information should help you understand the route, responsibilities and next action.
Live-site planning
The building’s operation changes the plan.
Preparation can create noise and debris, and roof access may affect areas below. The work method should account for internal operations and contamination control.
Common questions
Answers before you arrange the next step.
These answers explain the usual starting point. The actual scope still depends on the building and project information.
Can cut edge corrosion be painted over?
Painting over loose corrosion without suitable preparation and a compatible system is unlikely to provide a reliable repair. The affected metal and coating condition must be assessed first.
Does corrosion always mean the roof sheets need replacing?
No. Early or moderate deterioration may be repairable, while severe metal loss, perforation or failed laps may require local or wider replacement.
Can cut edge treatment be included in a wider coating project?
Yes, where the roof and selected coating system are suitable. Edge and lap preparation is often a critical part of the wider refurbishment scope.
How do you know whether the corrosion is too advanced?
The review considers metal loss, perforation, lap integrity, fixings, surrounding coating, water retention and whether the prepared substrate can support the specified repair.
Can the work be planned around an operating business?
Yes, where the project and site conditions allow it. Access, segregation, temporary weathering, noisy work, deliveries, stock protection and any shutdown periods should be considered before the programme is agreed.
What information should I send first?
A site postcode, building use, photographs, approximate area, target date and any existing surveys, drawings or specifications will make the first review more useful. You can add supporting files through the guided project brief.
Your next step
Tell us what is happening at the building.
Complete the guided project brief and add any photographs or documents. TCR will receive a structured summary rather than a vague contact form.
