Cut Edge Corrosion Treatment | Advanced Metal Roofing Solutions

About

We Work at the Cutting Edge of Corrosion Repair.

Cut-edge corrosion is a common issue affecting metal roofing, especially in industrial and commercial buildings. It occurs when the protective coating on metal sheets deteriorates at the cut edges, exposing the bare steel underneath to moisture and oxygen. Over time, this exposure leads to oxidation, resulting in rust formation that spreads along the sheet edges. If left untreated, it can weaken the roof's structural integrity, leading to leaks, water ingress, and costly repairs. Early detection is vital, as addressing the problem promptly can prevent severe damage and extend the roof's lifespan.

Effectively treating cut edge corrosion calls for a specialist approach to stop further deterioration and extend the roof's lifespan. The first step is thorough surface preparation, during which any loose rust, dirt, and failed coatings are removed to ensure optimal adhesion of treatment products. Once cleaned, applying Allbase’s specialist corrosion-resistant primers helps to stabilise the affected area and prevent further oxidation. After priming, the next stage involves sealing and protecting the cut edges with Allbase’s advanced liquid-applied systems, which create a seamless, waterproof barrier that resists moisture ingress.

Systems

Liquid systems for the treatment of cut edge corrosion

Allbase’s liquid-applied roofing systems offer a highly effective, durable solution for preventing and addressing cut edge corrosion. Our advanced systems are specifically designed to bond seamlessly to metal substrates, forming a flexible, sturdy barrier that prevents further corrosion while strengthening the roof’s integrity.

Using the latest rust-inhibiting technology, our primers are designed to stabilise corroded areas before applying the main system, guaranteeing maximum longevity and performance. Unlike traditional repairs, our liquid-applied systems are quick to install with minimal disruption, making them ideal for commercial and industrial properties.

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Accreditations
Features

BBA Approved

Allbase systems used on metal roofing have undogone over 2 years of testing with the BBA, the highest accreditation available in Europe.

C5 Corrosion Resistance

Our systems are the only ones to have achieved the highest corrosion standards in Europe of C5.

Zero Falls Approved

As the industry knows every gutter is full of water and has low drainage for most of the year. Our systems have passed and achieved a 6 metre water head test providing the highest protection in the industry.

BROOF(t4) Fire Retardancy

Our systems have achieved the highest fire rating standard in Europe brooft4 which is now a standard requirement for all new builds in the UK.

Low to no odour

Allbase's advanced liquid systems have exceptionally low odour during installation, making it ideal for sensitive applications within the commercial sector.

Rapid Curing

Extremely fast application times with curing rates as low as 30 minutes to minimise impact.

Extremely Durable

Allbase's liquid roofing systems are highly durable UV Resistant and impervious to standing water offering long-lasting protection with lifespans over 30 years.

Guarantee Backed

Basecare Cover for up to 25 years, for both the material and installation.

Process

Our Step by step plan to stop cut edge corrosion in its tracks.

We aim to simplify the edge-corrosion repair process while ensuring everything is done properly from start to finish. It starts with a roof survey, where our technical team assesses the extent of the corrosion and checks for any other problems. From there, we prepare a detailed project specification, outlining the best repair method and recommending a trusted contractor to undertake the work. Once the job is complete, we issue our Basecare Guarantee, providing up to 20 years of protection, along with a maintenance plan to help maintain your roof in top condition for years to come.

Roof Survey and Assessment

Our technical services team will inspect your roof to assess its condition, identify any corrosion or other issues, and ensure all concerns are understood and recorded.

Project specification

According to the roof survey, a detailed project specification will be provided, highlighting roof issues and explaining how to carry out the work. The Allbase technical services representative will recommend an approved contractor to undertake your installation.

Installation

Your Technical Services Representative will stay in contact throughout the process, overseeing your installation to ensure every detail meets the project specifications. We work exclusively with our network of verified installers who share our commitment to excellent customer service and aligned values.

Guarantees

Once the project is complete and the contractor has submitted all required paperwork, our Basecare Guarantee can be issued. Our industry-leading guarantees can offer up to 20 years of coverage for your Allbase product, along with a free maintenance plan and support.

Aftercare

Once the project is complete, a scheduled maintenance plan can be put in place to ensure the roof remains in premium condition for many years to come.

Guaranteeing Protection Where It’s Needed Most

Our cut edge corrosion systems come with comprehensive guarantees of up to 20 years, reflecting our commitment to long-lasting protection and performance. Backed by rigorous testing and decades of industry expertise, our systems are designed to withstand the harshest conditions while maintaining optimal performance, guaranteed.

Get up to 20 years of cover

Comprehensive Basecare cover for up to 20 Years is available with Allbase's range of advanced liquid roofing systems, depending on the project’s requirements and specifications.

Standard

The standard Basecare manufacturer's guarantee covers both domestic and commercial installations.

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Installation

Alongside the benefits of the standard cover, the Basecare Installation Guarantee offers protection for the work performed by our network of trained and approved installers in the unlikely event of an issue.

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Consultation

Book a free, no obligation, roof consultation

Start addressing cut-edge corrosion and safeguard your metal roof today with our free, no-obligation consultation. Whether your roof shows signs of corrosion, damage along cut edges, or you are planning proactive maintenance, our experts are ready to assist. We will assess the extent of cut edge corrosion, understand your specific needs, and provide tailored recommendations, all without any pressure to proceed.

Frequently Asked Questions

We’ve answered the most common questions about cut edge corrosion. With over 30 years of experience in roof surveys, a focus on the latest liquid technology, and a nationwide contractor network, we aim to make the process straightforward and transparent. If your query isn’t covered here, don’t hesitate to contact our team for assistance.

What is cut edge corrosion?

Simply put, cut edge corrosion happens at the edges of coated steel sheets. These sheets are made by coating galvanised steel with protective layers—inside and out. But when these sheets are cut to size during installation, the edges are left exposed. And what happens when metal meets weather? Corrosion!

How can I tell if my roof has cut edge corrosion?

Signs of cut edge corrosion include visible rust or discolouration along the edges of metal roofing sheets, flaking or peeling of the coating, and bubbling paint. Over time, you may notice a reduction in the roof’s overall integrity if left untreated.

What metal roofs are most vulnerable?

Metal roofs with coated steel sheets, such as galvanised steel or pre-painted metal, are particularly vulnerable to cut edge corrosion. This is because the exposed edges of the sheets are more prone to environmental factors like moisture and UV exposure.

Can cut edge corrosion spread to other areas?

Yes, if untreated, cut edge corrosion can spread beyond the edges and affect other parts of the metal sheet. Corrosion may creep under the coating, causing widespread deterioration of the roof’s surface.

Does cut edge corrosion only affect old roofs?

In short no, even relatively new roofs can develop cut edge corrosion if the installation or coating quality is poor or if the roof is exposed to harsh environmental conditions.

How long does it take for corrosion to develop?

The timeline depends on factors like the quality of the original coating, environmental conditions, and maintenance. In harsher climates or when maintenance is neglected, corrosion can appear within a few years of installation.

Can a roof survey help identify corrosion early?

Yes, booking an Allbase Roof Survey can detect early signs of cut edge corrosion and other potential problems before they become significant.

How often should I inspect my roof for corrosion?

It’s recommended to inspect your roof at least twice a year, and after extreme weather events, to catch signs of cut edge corrosion early and maintain the roof’s condition.