Cut-edge corrosion
Identify whether deterioration is local at sheet edges or has progressed into material loss, laps and surrounding coating.
Commercial metal roofing
Commercial metal roofrefurbishment.
Assessment and refurbishment of profiled metal roofs, including corrosion, leaks, existing coatings, roof details and drainage.
Direct answer
Metal roof refurbishment retains and protects a suitable existing roof. It should combine defect repair, preparation and a compatible system—not use coating to disguise failed steel.
Problem → diagnosis → response
How the defect affects the repair scope.
Coating breakdown
Chalking, peeling and adhesion failure change the cleaning, preparation, primer and coating specification.
Laps and fasteners
Failed washers and seals can leak independently of the main sheet, so they need separate inspection and detailing.
Rooflights and flashings
Ridges, verges, penetrations and rooflight interfaces often explain ingress that is wrongly blamed on the field sheet.
Gutters and outlets
Retained water, leaking joints and restricted outlets can damage adjacent roof edges and overwhelm otherwise sound areas.
Perforated sheets
Where steel has lost section or perforated, sheet repair or replacement may be required before a protective system.
Repair, refurbish or replace
How repair and refurbishment options are compared.
Targeted repair
For isolated laps, fixings, flashings or early corrosion where the surrounding roof remains serviceable.
Whole-roof refurbishment
For wider but treatable deterioration requiring preparation, detailing and a compatible protective or waterproofing system.
Replacement
For failed steel, structural concerns or a roof whose retained areas cannot support a reliable refurbishment.
When this route is not enough
Coating or overlay is not a substitute for sound steel. Perforation, advanced section loss, structural movement, unsafe rooflights or an incompatible retained build-up need resolving in the scope.
How the work is specified
From inspection findings to a scope of work.
- 01Review roof type, size, age, access and operational constraints.
- 02Map corrosion, coating failure, laps, fixings, rooflights and drainage.
- 03Test or verify substrate and existing-coating suitability where required.
- 04Separate local repairs from wider preparation and waterproofing.
- 05Select a manufacturer-supported system for the verified condition.
- 06Document exclusions, programme, inspection and any warranty conditions.
Clear answers
Metal roof questions, answered
Metal Roof Refurbishment Cluster
Related metal roof resources
Technical guidance across the metal roof condition-to-coating lifecycle — corrosion, cut-edge failure, repairability, preparation, protective coating, inspection and cost.
Your roof. Your next step.
Is your metal roof ready for refurbishment?
Send the postcode, roof type, approximate area, visible defects and wide plus close-up photographs. We will help establish the next technical step.