Understanding the Deterioration Stage of Metal Wall Cladding

Metal wall cladding is a popular choice for commercial properties across the UK, offering durability, weather resistance, and a sleek, modern appearance. However, like all building materials, cladding is not immune to the effects of time and the environment. Understanding the stages of deterioration is crucial for property owners and facilities managers who want to maintain their building’s appearance, performance, and value—while avoiding costly replacements.

At Cladding Coatings, we’ve seen firsthand how early intervention can make all the difference. Let’s explore the deterioration lifecycle and why timely refurbishment is the smartest investment you can make.

The deterioration of metal wall cladding follows a predictable pattern. Recognising these stages early allows for proactive maintenance and refurbishment, extending the life of your building’s façade.

1. Fading
   The first visible sign of deterioration is colour fading. This is typically caused by prolonged exposure to UV rays and weathering. While it may seem purely cosmetic, fading is an early indicator that the protective coating is beginning to break down.
   
   Solution: Recoating or repainting at this stage is highly effective and cost-efficient. It restores the building’s appearance and reinforces the protective barrier.
   
2. Chalking
   As fading progresses, chalky residue may appear on the surface. This is a sign that the paint is degrading and losing adhesion. Chalking not only affects aesthetics but also signals that the cladding is becoming vulnerable to further damage.
   
   Solution: A professional inspection and refurbishment can halt the deterioration here, preventing more serious issues.
   
3. Cracking
   If chalking is ignored, the next stage is cracking and peeling of the paint surface. This exposes the underlying metal to moisture and air, initiating the process of cut-edge corrosion.
   
   Solution: Immediate repair and recoating are essential. At this point, refurbishment is still possible and far more affordable than replacement.
   
4. Corroding
   Once the metal is exposed, corrosion sets in. This is especially common at sheet edges and joints, where water ingress is most likely. Corrosion compromises the structural integrity of the cladding and can lead to leaks and internal damage.
   
   Solution: Cut-edge corrosion treatment and protective coatings can still salvage the cladding if addressed promptly.
   
5. Failing
   In the final stage, the cladding has deteriorated beyond repair. Sheets may become loose, leak, or even detach. At this point, full replacement is often the only option—an expensive and disruptive process.
   

Environmental conditions play a significant role in the speed of cladding deterioration. Coastal properties are particularly vulnerable due to:

• Salt-laden air, which accelerates corrosion
• High humidity, which promotes moisture retention
• Frequent storms and wind-driven rain, which cause physical wear
  Buildings in these regions often move through the deterioration stages more quickly. That’s why regular inspections and early intervention are even more critical for coastal commercial properties.

Delaying refurbishment might seem like a cost-saving measure, but it often leads to greater expenses down the line. Here’s why early treatment is the smarter financial choice:

Lower repair costs: Refurbishment during the fading or chalking stage is significantly cheaper than corrosion repair or full replacement.

Minimal disruption: Early-stage treatments are quicker and less invasive, reducing downtime for your business.

Extended lifespan: Proactive maintenance can add years to your cladding’s life, delaying the need for costly replacement.

At Cladding Coatings, we specialise in assessing and refurbishing metal wall cladding at every stage of its lifecycle. Our experienced team offers:

On-site inspections to determine the exact stage of deterioration

Tailored refurbishment solutions, including recoating, corrosion repair, and protective treatments

Expert advice on the most cost-effective and long-lasting options for your property

Whether your building is in the early stages of fading or showing signs of corrosion, we’re here to help you protect your investment.

Your building’s exterior is its first impression—and its first line of defence. Don’t let minor signs of wear escalate into major structural issues. By understanding the stages of deterioration and acting early, you can maintain your property’s appearance, performance, and value for years to come.

If you’re unsure what stage your cladding is at, our team at Cladding Coatings is always happy to help. Get in touch today for a no-obligation site survey and expert guidance on the best refurbishment solutions for your commercial property.