How to Tell When Your Foam Roof Needs Recoating

Foam roofing is a popular choice for both residential and commercial buildings due to its durability, energy efficiency, and seamless application. However, like any roofing system, foam roofs require regular maintenance to ensure they continue to provide optimal protection. 

One essential aspect of maintaining a foam roof is recoating it periodically. But how can you tell when your foam roofing needs recoating? Let’s find out!

Understanding Foam Roofing

Foam roofing, also known as spray foam roofing, involves applying a layer of polyurethane foam to the roof surface, followed by a protective coating. This system creates a seamless, insulated barrier that is highly effective in protecting against leaks, improving energy efficiency, and extending the roof’s lifespan. 

The recoating process involves applying a new layer of protective coating over the existing foam to restore its effectiveness and longevity. But what are some signs your foam roof needs recoating?

1. Visible Wear and Tear

One of the most obvious signs that your foam roof needs recoating is visible wear and tear. Look for cracks, blisters, punctures, or any other forms of damage on the roof surface. These issues can compromise the roof’s protective capabilities, leading to leaks and further deterioration. Addressing these signs promptly is crucial to maintaining the integrity of your foam roofing.

2. Thinning Coating Layer

Over time, the protective coating on your foam roof can wear thin due to exposure to the elements. To check the thickness of the coating layer, you can consult with a professional roofer who will use specialized tools to measure it. A thin coating layer reduces the roof’s ability to protect against UV rays and water infiltration. Generally, the coating should be around 20-30 mils thick for optimal protection. If it’s significantly thinner, it’s time to recoat.

3. UV Damage and Discoloration

Foam roofing is susceptible to UV damage, which can manifest as discoloration or chalking on the surface. Prolonged exposure to UV rays can degrade the foam and reduce its effectiveness. If you notice your roof is becoming discolored or chalky, it’s a clear sign that the protective coating is breaking down and needs to be reapplied to restore UV protection.

4. Water Ponding and Leaks

Water ponding and leaks are serious indicators that your foam roof is compromised. Water should not pool on the surface of your roof for extended periods. Persistent water ponding can lead to leaks and further damage the foam insulation beneath. If you observe any water ponding or leaks, it’s crucial to address these issues immediately, as they signal that your roof’s protective barrier is failing.

5. Loss of Energy Efficiency

One of the key benefits of foam roofing is its ability to improve energy efficiency by providing superior insulation. If you notice a spike in your energy bills or a decrease in your building’s energy efficiency, it may indicate that your foam roof is no longer performing optimally. Recoating can help restore the insulation properties of your roof, ensuring that it continues to provide energy savings.

When to Recoat Your Foam Roof

Typically, foam roofs need recoating every 5-10 years, depending on various factors such as climate, roof condition, and the quality of the initial installation. In harsher climates, more frequent recoating may be necessary. Regular inspections by a professional can help determine the optimal recoating schedule for your roof.

Choosing a Spray Foam Roofing Provider in Arizona

When it comes to recoating your foam roof, hiring a professional and experienced company is essential. Look for a company with a proven track record, positive customer reviews, and a commitment to quality workmanship. Foamco Roofing is a trusted spray foam roofing company in Phoenix, offering expert services to ensure your foam roof remains in top condition.


Recognizing the signs that your foam roof needs recoating is crucial for maintaining its durability and performance. For professional assessment and recoating services, contact Foamco Roofing. Our experienced team is dedicated to helping you maintain a safe, efficient, and long-lasting roof.