Understanding Cut Edge Corrosion and How to Fix It

Cut edge corrosion is one of the most common issues affecting metal roofs, cladding and sheet materials on commercial and industrial properties. It occurs when protective coatings break down at cut ends, overlaps or panel edges, exposing raw metal to the elements. Over time, this leads to rust, deterioration and potential structural damage. Understanding this process and how to treat it professionally can save your business significant time and expense.

At All Aspect Coatings, we encounter cut edge corrosion frequently during roof and cladding inspections. While many property owners think of corrosion as a cosmetic problem, the reality is that it can undermine the integrity of sheet materials if left untreated. Moisture, temperature changes and exposure to chemicals accelerate rust formation, leading to weakened fixings and compromised performance.

Effective cut edge corrosion treatment involves more than simply painting over rust. First, the affected areas must be properly prepared. This includes removing loose coatings, treating rusted surfaces, and abrading edges to create a sound substrate. A rust-inhibiting primer is then applied before a flexible, weather-resistant top coat seals the metal and protects it from future corrosion.

The primary objective of treatment is to restore protection where it has worn away - especially at vulnerable points like cut edges and overlaps. Spray technology allows us to reach into joints and angles that rollers or brushes cannot access, ensuring complete coverage.

Treating cut edge corrosion early prevents more extensive problems later. Left unchecked, corrosion spreads inward, often necessitating panel replacement or full roof/cladding replacement - both of which are far more costly and disruptive.

Our team uses high-performance corrosion-resistant coatings designed for industrial environments. These coatings remain flexible, waterproof and UV stable, even under harsh weather conditions.

For commercial property owners who want to protect their investment, cut edge corrosion treatment is an essential maintenance step. Contact All Aspect Coatings for a detailed inspection and expert corrosion solutions.