Aluminum Composite Panels (ACP) are commonly used in residential and commercial buildings because of their longevity, sleek look, and weather resistance. However, like any other building material, ACPs deteriorate over time. Spotting the early signs of damage means you can maintain your building’s integrity and visual appeal, as well as avoid expensive repairs. In this blog, we will help you identify the important signs that indicate your composite panel system will require repairs or an entire replacement.
1. Visible Dents and Deformations

Dents, warping, or bulging indicate structural issues. These can occur from harsh weather, impact damage, or poor installation. If left unchecked, they not only look unattractive but can also lead to moisture seepage and corrosion inside the panels.
2. Discoloration and Fading

Over time, exposure to sun and pollution can change the surface of your composite panel from its original color or shine. Fading, patchy discoloration, and chalky residue shows that the protective coating is failing. This ultimately affects the aesthetics of the building but may also decrease the panel's weather-resistant capabilities.
3. Loose or Misaligned Panels

If you see certain panels are shifting out of alignment or seem loose when touched, there could be a more serious issue with the panel's attachment system. Wind, temperature, and structural settling can all cause aluminum ("alucobond," "composite") panels to expand and contract, which can disrupt placement and create gaps that allow moisture to penetrate.
4. Water Leakage and Stains

Water stains around panel joints or on the interior side of walls is a cause for concern. Despite composite panels being water-resistant by design, improper installation or aging sealants can lead to leaking. Water intrusion can lead to the growth of mold, rusting of the inner frame, and permanent damage to your building’s exterior. This may indicate that your ACP system needs a full inspection and possible replacement.
5. Corrosion Around Edges or Fasteners

Although aluminum composite panels resist corrosion better than many materials, they may not be corrosion-free. Check for rust or white residue around fasteners, seams, and the edges of panels. This would indicate that moisture has entered and oxidation has started. Corrosion can affect the parameters of the panel but also the performance and safety of your building.
6. Delamination of the Composite Panel

Delamination can happen when the aluminum sheets begin separating from the core material. This makes composite panel vulnerable to breakage and moisture. Bubbling, bulging, or cracking on the surface indicates that delamination has occurred and replacement is needed.
Conclusion

An aluminum composite panel system is an important aspect to help protect your property. When a composite panel is inspected routinely and maintained it can last a long time. However, there are important steps to take when the damage is obvious, or the performance is reduced. That means proper inspection, repair, or replacement is necessary if you see any of the following signs.
If you see any of these indicators, it is wise to seek professional help. Experts will be able to determine if the panels can be repaired, or if a full panel replacement is necessary when the integrity of the panel is lost. Ultimately, when you keep your composite panels in top condition, you increase the durability, safety, and appearance of the building.