Commercial buildings often face challenges with roof maintenance, especially when it comes to metal roofs. Over time, exposure to harsh weather, UV rays, and moisture can lead to rust, corrosion, and general wear. One effective solution to these issues is metal roof coatings. This blog will explain what metal roof coatings are, their benefits, the application process, and how they can help prolong the life of your commercial property’s roof.

What Are Metal Roof Coatings?

Metal roof coatings are liquid-applied membranes designed to protect and extend the life of metal roofing systems. They create a seamless, waterproof barrier over the roof’s surface, shielding it from external elements like rain, UV rays, and temperature changes. Once applied, the coating adheres to the roof, filling in minor cracks and covering areas susceptible to rust and corrosion. Metal roof coatings are available in various formulations, including acrylic, silicone, and polyurethane, each with unique properties suited to different roofing needs.

Benefits of Metal Roof Coatings

1. Protection Against Rust and Corrosion
   • Metal roofs are prone to rust, especially in areas with high humidity or frequent rain. Metal roof coatings serve as a protective layer that prevents water from coming into direct contact with the roof’s surface, reducing the risk of rust and corrosion. This is particularly beneficial for older roofs showing early signs of wear.
2. Energy Efficiency
   • Metal roof coatings often have reflective properties that can lower the roof’s temperature by reflecting sunlight. This reduces heat absorption, which can lead to cooler indoor temperatures and lower energy bills. By investing in a high-quality metal roof coating, commercial property managers can improve their building’s energy efficiency without replacing the entire roof.
3. Cost Savings
   • Applying a metal roof coating is a cost-effective alternative to replacing the roof. Rather than investing in a new roof installation, businesses can extend the lifespan of their existing roof with a coating. This saves on material and labor costs while also minimizing disruption to daily operations during installation.
4. Improved Durability
   • Metal roof coatings enhance the roof’s durability by creating a smooth, uniform surface that resists damage from environmental factors. The coatings are designed to withstand temperature fluctuations, heavy rain, wind, and UV exposure, ensuring the roof remains in good condition for many years. This durability makes coatings a smart investment for commercial property owners looking to protect their assets.
5. Quick and Easy Application
   • Compared to a full roof replacement, applying a metal roof coating is relatively quick and easy. Depending on the roof’s size, the process can often be completed in just a few days, allowing businesses to continue their operations with minimal disruption.

Types of Metal Roof Coatings

There are several types of metal roof coatings available, each with specific benefits:

1. Acrylic Coatings
   • Acrylic coatings are popular due to their affordability and ease of application. They are water-based, making them environmentally friendly, and they provide good UV protection. However, acrylic coatings may not be the best choice for areas with frequent heavy rain, as they can lose effectiveness when exposed to standing water for extended periods.
2. Silicone Coatings
   • Silicone coatings offer excellent resistance to ponding water, making them ideal for flat or low-sloped roofs where water may collect. They provide long-lasting UV protection and can withstand extreme temperatures. Silicone coatings are more durable than acrylic but tend to be more expensive.
3. Polyurethane Coatings
   • Polyurethane coatings are known for their high durability and resistance to impact and abrasion. They are well-suited for metal roofs that experience heavy foot traffic or harsh weather conditions. While polyurethane coatings can be more costly, their superior performance and longevity often justify the investment.

The Application Process for Metal Roof Coatings

1. Inspection and Cleaning
   • Before applying a metal roof coating, the roof must be thoroughly inspected to identify any existing damage. Any rust, dirt, or debris should be removed, and repairs should be made to damaged areas. A clean, dry surface is essential for the coating to adhere properly.
2. Priming the Surface
   • In some cases, a primer may be necessary, especially if the roof has been heavily corroded or if a specific coating type requires it. The primer helps create a strong bond between the roof surface and the coating, ensuring long-lasting protection.
3. Applying the Coating
   • The metal roof coating is applied using rollers, brushes, or spray equipment. The coating should be spread evenly across the roof to create a consistent, seamless barrier. Multiple layers may be applied, depending on the product’s requirements and the desired level of protection.
4. Drying and Inspection
   • After the coating has been applied, it needs time to cure and dry completely. This process can vary based on the type of coating used and weather conditions. Once dry, the roof should be inspected to confirm that the coating has been evenly applied and that there are no areas where the roof is still exposed.

Common Issues Metal Roof Coatings Can Resolve

1. Leaks and Moisture Damage
   • One of the most common problems with metal roofs is leaking, often caused by seams, fasteners, or aging materials. Metal roof coatings create a waterproof seal that prevents moisture from seeping through, effectively stopping leaks and minimizing the risk of water damage to the building’s interior.
2. UV Damage and Fading
   • Prolonged exposure to UV rays can cause metal roofs to fade, weaken, and degrade over time. Metal roof coatings reflect UV rays, preventing this kind of damage and maintaining the roof’s appearance. By blocking UV radiation, the coating also helps preserve the roof’s structural integrity.
3. Thermal Expansion and Contraction
   • Metal roofs naturally expand and contract with changes in temperature. Over time, this can cause fasteners to loosen and seams to open, leading to leaks. Metal roof coatings provide a flexible barrier that accommodates this movement, reducing the likelihood of damage.

Is Metal Roof Coating Right for Your Commercial Property?

Choosing to apply a metal roof coating can be a smart decision for commercial property managers looking to protect their buildings. Coatings are a cost-effective way to extend the roof’s lifespan, improve energy efficiency, and avoid the expense and hassle of a full roof replacement. However, it’s essential to select the right type of coating for your specific roof and climate conditions. Consulting with a professional roofing contractor can help determine which coating will best suit your needs.

Maintenance Tips for Metal Roof Coatings

To maximize the benefits of metal roof coatings, regular maintenance is essential:

1. Scheduled Inspections
   • Have the roof inspected at least twice a year to check for any signs of wear, damage, or coating deterioration. Early detection of problems can prevent costly repairs.
2. Clean the Roof Regularly
   • Remove debris, leaves, and dirt that accumulate on the roof, as they can hold moisture and cause the coating to deteriorate over time. Regular cleaning helps keep the coating in good condition.
3. Repair Damage Promptly
   • If any damage to the coating is identified, it should be addressed as soon as possible. Small cracks or punctures can quickly lead to bigger issues if not repaired.

Contact Eagle Rivet for Expert Metal Roof Coatings

Metal roof coatings offer a simple, effective solution to common issues like rust, leaks, and UV damage. They are an affordable way to extend the life of a commercial roof while providing added benefits like energy efficiency and durability. If you are considering metal roof coatings for your commercial property, reach out to Eagle Rivet today. Our team of experts can help you choose the best coating for your roof, ensuring it remains in top condition for years to come. Contact us now to learn more about our roofing solutions and services.

David Nietch

David Nietch graduated from Central Connecticut State University with a Bachelor of Science in Business Management and Organization. He has a strong background in positions which require experienced operation and project management as well as a strong attention to detail. David has a profound knowledge of concepts, competitive products, practices and process dealing with the roofing market.