Commercial Metal Roof Repair & Cut Edge Corrosion Treatment

The Problems

Some of the issues facing metal roofs in the UK

Commercial metal roofs face challenges like cut edge corrosion, thermal movement, leaks and weather-related wear. Over time, exposure to moisture and oxygen causes coatings to peel, leading to rust and structural weakening, while temperature fluctuations can loosen fixings and seams, increasing the risk of water ingress. Allbase's liquid-applied roofing solutions create a seamless, long-lasting barrier against corrosion and leaks, extending the lifespan of metal roofs.

Cut Edge Corrosion

A major issue for metal roofs, especially those with coated steel sheets. Over time, exposure to moisture and oxygen causes the protective coating to deteriorate at the cut edges, leading to rust and structural weakening.

Gutters & Drainage

Poor drainage can lead to water pooling at seams and fasteners, accelerating corrosion and increasing the risk of leaks. Blocked gutters can cause water to back up and seep under roof panels, damaging insulation and underlying structures.

Expansion

Temperature fluctuations causes roof surfaces to expand and contract, which can cause fixings to loosen and seams to weaken over time. This movement can also stress joints and flashing, potentially leading to leaks.

Foot Traffic

Walking on a metal roof can cause dents, scratches, and damage to protective coatings, particularly on thinner gauge metal panels. Repeated foot traffic near seams or fixings can also loosen connections and compromise waterproofing.

Overgrowth

Moss, algae, and debris can trap moisture against the metal surface, accelerating corrosion, particularly in shaded or damp areas. Overgrowth in gutters can also lead to drainage issues, increasing the risk of standing water and leaks.

Check if We Cover Your Area

Enter your postcode to see if Allbase operates in your area. From advanced flat roofing systems to expert installation and support, we bring high-performance solutions exactly where they’re needed.

Systems

We have a system for every metal roofing problem

Upgrade your metal roof with Allbase’s cutting-edge liquid-applied roofing systems, engineered to enhance durability and performance. These advanced coatings are ideal for sealing and protecting metal roofs, treating cut edge corrosion and gutters preventing leaks and corrosion while extending the lifespan of your roof without the need for a full replacement.

With a low-odour, solvent-free formula, Allbase’s systems are perfect for environments where minimal disruption is essential. Their fast-curing properties allow for quick application, ensuring your metal roof is fully protected with minimal downtime. Once applied, these high-performance coatings form a seamless, waterproof barrier designed to withstand extreme weather conditions and prevent long-term degradation.

Allbase roofing systems can be applied in temperatures as low as 1°C, making them a reliable choice for year-round metal roof maintenance and refurbishment. Their versatility allows them to adapt to various roof profiles, including corrugated, standing seam, and flat metal roofs, providing a seamless finish.

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.

Roller Applied

Suitable for roofs up to 500m² these systems are ideal for cut edge corrosion, roof light repairs and waterproofing of damaged metal sheets especially at the overlaps.

Spray Applied

Suitable for larger roof recoating projects over 500m² instant curing spray roofing systems can be laid by an approved contractor.

Robot Applied

Our specialist metal roofing systems have been created to work with the latest in robotics on large roofs speeding up application and reducing costs.

Services

From problem to solution and beyond, we've got your metal roof covered.

Along with our range of advanced roofing systems, Allbase specialises in delivering high-quality commercial roofing services tailored to meet the needs of business across the UK. From consultations and surveys to advanced drone inspections, our experienced team provides accurate assessments of your roof’s condition, ensuring any issues are identified and addressed promptly. To keep your roof in top condition year-round, we also provide comprehensive maintenance plans, safeguarding your property and minimising costly disruptions.

Roofing Surveys

Our comprehensive roofing surveys provide an in-depth assessment of your roof’s condition, using advanced techniques including drone inspections and thermal imaging. Whether you’re addressing specific concerns or planning long-term solutions, our detailed reports ensure you have all the information needed to make informed decisions.

System Installations

Our trusted network of experienced roofing contractors, ensuring seamless installation of our high-performance liquid-applied roofing systems. Each contractor is carefully vetted to guarantee the highest standards of workmanship and professionalism. Whether it’s a repairs, overlays or a new roof, our network ensures reliable installations tailored to your requirements.

Maintenance

Protect your investment with our comprehensive maintenance plans, designed to keep your roof in peak condition. Regular inspections and preventative care help to avoid costly repairs by addressing minor issues early. With Allbase, you can count on year-round protection and peace of mind for your commercial property.

Consultation

Book a free, no obligation, roof consultation

Take the first step towards protecting and enhancing your metal roof with our free, no-obligation roof consultation. Whether you’re dealing with leaks, corrosion or planning a refurbishment, our experts are here to help. We’ll assess your roof’s condition, discuss your needs, and provide tailored recommendations – all without any pressure to commit. From drone inspections to maintenance advice, our team ensures you have the information you need to make confident decisions.

Frequently Asked Questions

We’ve addressed the most common questions about our liquid roofing systems and roof surveys for metal roofs. With over 30 years of experience in roofing, 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 get in touch with our team for assistance.

Liquid Roofing Systems

What are liquid coatings for metal roofs?

Liquid-applied coatings are seamless, waterproof membranes applied directly to the surface of a metal roof. These coatings create a durable, flexible barrier that prevents water ingress, protects against corrosion, and extends the lifespan of the roof. They adhere to the existing substrate, eliminating the need for costly roof replacements.

How effective are they for repairing metal roofs?

Yes, they are highly effective in sealing leaks, bridging small gaps, and preventing further water penetration. They are designed to withstand thermal expansion and contraction, ensuring long-term leak prevention even in the UK’s variable climate.

Are they suitable for all metal roofs?

Yes, liquid coatings can be applied to a wide range of metal roofing substrates, including steel, aluminium, and galvanised metal. They are ideal for addressing leaks, corrosion, and weather damage without the need for costly replacements.

How long do liquid coatings last?

With proper installation and maintenance, liquid coatings can extend a metal roof’s lifespan by 20+ years. High-performance systems like Polyurethanes and Polyureas offer superior durability and weather resistance.

How are they applied to a metal roof

The process typically involves surface preparation (cleaning and treating rust), priming, and applying multiple layers of liquid coating. Reinforcement materials may be used in high-movement areas for additional strength.

Will they affect the appearance of the roof?

No, liquid coatings can enhance the roof’s aesthetics while providing a uniform finish. They are available in a range of colours and can improve reflectivity, reducing heat absorption.

Do they comply with UK building regulations?

Yes, Allbase’s liquid roofing systems comply with UK building regulations and meet industry standards for waterproofing and fire resistance.

Metal Roofing Surveys

What is an Allbase roof survey?

An Allbase roof survey assesses the condition of your metal roof, identifying leaks, corrosion, and structural issues. This helps determine the best course of action for repairs or coating applications.

How does the survey process work?

Our expert team conducts a thorough roof inspection using either physical assessments or drone-based technology to capture detailed imagery and thermal data.

What information is included in the survey?

The report provides a detailed condition assessment of the roof, including high-resolution images and thermal data if applicable. It also outlines recommendations for repairs or coating solutions, along with a cost estimate for remedial work.

Are Allbase roof surveys free?

The initial assessment is free, depending on access to the roof. More detailed technical surveys, including drone thermal imaging, may carry a charge.

What are the advantages of using drones

Drones provide high-resolution imagery without the need for scaffolding or ladders, enabling faster and safer assessments with minimal disruption. Additionally, thermal imaging helps detect hidden leaks and insulation issues. For more information visit our Nationwide Drone Surveys page.

What happens after the survey?

Following the survey, we provide a tailored proposal outlining recommended solutions, timelines, and costs. Our team is available to discuss the findings and help plan the next steps.

How is the survey data managed?

Everything is managed through the Allbase Portal, a secure, cloud-based platform that allows clients and contractors to collaborate seamlessly on roofing projects. Survey data, including images, condition reports, and recommended solutions, is uploaded to the portal, where users can access real-time updates, track project progress, and communicate efficiently.