When it comes to protecting and maintaining commercial properties, the roof is often overlooked until significant issues arise. However, proactive roof maintenance can save property managers and commercial property owners from costly repairs and replacements. One of the most effective methods for extending the lifespan of a commercial roof is through the application of roof coatings.
This blog post is designed to explore everything you need to know about a roof coating, from:
- Their benefits and types
- Application processes
- Maintenance tips
Our goal is to provide property managers and commercial property owners with the knowledge they need to make informed decisions about roof coatings.
What is a Roof Coating?
Roof coatings are fluid-applied roofing membranes that form a seamless layer over the existing roof surface. These coatings are designed to protect the roof from environmental elements such as UV rays, rain, wind, and temperature fluctuations. They also help in improving the energy efficiency of the building by reflecting solar heat.
Noteworthy Benefits of Roof Coatings
- Extended Roof Lifespan: Roof coatings create a protective barrier that shields the roof from harmful UV radiation, weather events, and physical wear and tear, significantly extending the roof’s service life.
- Cost Savings: Applying a roof coating can delay the need for a full roof replacement, offering substantial cost savings. Additionally, many roof coatings qualify for tax incentives and rebates.
- Energy Efficiency: Reflective roof coatings can reduce the building’s cooling costs by reflecting a significant portion of solar heat. This can lower interior temperatures and reduce HVAC system strain.
- Environmental Benefits: By extending the life of your existing roof, roof coatings can reduce landfill waste. Some coatings are also environmentally friendly, containing low levels of volatile organic compounds (VOCs).
- Ease of Application: Roof coatings can be applied with minimal disruption to building operations. The process typically involves cleaning the roof surface, making minor repairs, and applying the coating.
4 Types of Roof Coatings
There are several types of roof coatings, each with its unique properties and benefits. The right choice depends on factors like the roof type, climate, and specific needs of the building. Here are the most common types:
1. Acrylic Roof Coatings
Acrylic roof coatings are water-based and known for their excellent UV resistance and flexibility. They are suitable for a variety of roof substrates, including metal, modified bitumen, and single-ply membranes.
✅ Pros:
- UV resistant
- Cost-effective
- Environmentally friendly (low VOC)
❌ Cons:
- Less effective in ponding water situations
- May require multiple coats for optimal thickness
2. Silicone Roof Coatings
Silicone roof coatings are ideal for roofs that experience ponding water. They offer excellent UV stability and weather resistance. Silicone coatings can be applied to various roof materials, including metal, EPDM, and built-up roofs (BUR).
✅ Pros:
- Superior resistance to ponding water
- Excellent UV stability
- High durability
❌ Cons:
- Can be slippery when wet
- Higher initial cost compared to acrylic
3. Polyurethane Roof Coatings
Polyurethane roof coatings are known for their high durability and resistance to impact and foot traffic. They come in two types—aromatic (less UV stable) and aliphatic (more UV stable). Polyurethane coatings are commonly used on roofs with high foot traffic or mechanical equipment.
✅ Pros:
- High durability
- Resistant to foot traffic and impact
- Strong adhesion to various substrates
❌ Cons:
- Higher cost
- Aromatic types may yellow over time
4. Asphalt Roof Coatings
Asphalt-based coatings, also known as bituminous coatings, are commonly used on built-up roofs (BUR) and modified bitumen roofs. These coatings provide excellent waterproofing and are often reinforced with other materials like fiberglass.
✅ Pros:
- Excellent waterproofing
- Good for restoring older BUR and modified bitumen roofs
- Cost-effective
❌ Cons:
- Limited UV resistance (requires reflective topcoat)
- Can be heavy and thick
How to Choose the Right Roof Coating
Selecting the right roof coating for your commercial property involves evaluating several key factors:
Roof Type and Material
Consider the existing roof material and its compatibility with different coatings. For example, silicone coatings are excellent for EPDM roofs, while acrylic coatings work well on metal roofs.
Climate and Weather Conditions
Assess the local climate and weather conditions. If your building is in an area with heavy rainfall, a silicone coating with superior ponding water resistance might be the best choice. For hot, sunny climates, a highly reflective acrylic coating could be more beneficial.
Building Use and Foot Traffic
Consider how the building is used and the amount of foot traffic the roof will endure. Polyurethane coatings are ideal for roofs with frequent foot traffic due to their high durability.
Budget and Expected Lifespan
Evaluate your budget and the desired lifespan of the coating. While silicone coatings may have a higher initial cost, their durability and performance can provide long-term savings.
4 Step Application Process of Roof Coatings
The application process of roof coatings is crucial to ensure their effectiveness and longevity. Here’s a step-by-step guide to the typical application process:
1. Inspection and Preparation
- Inspect the Roof: Conduct a thorough inspection to identify any existing damage, such as leaks, cracks, or weak areas.
- Clean the Surface: Remove dirt, debris, mold, and mildew from the roof surface using pressure washing or scrubbing.
- Repair Damage: Address any identified issues, including patching cracks and sealing leaks.
2. Priming the Roof
- Apply Primer: Some roof coatings require a primer to enhance adhesion. Apply the primer according to the manufacturer’s instructions and allow it to dry completely.
3. Applying the Roof Coating
- Choose Application Method: Roof coatings can be applied using brushes, rollers, or sprayers. The choice of method depends on the coating type and roof size.
- Even Application: Apply the coating evenly across the roof surface, ensuring all areas are covered. Multiple coats may be necessary for optimal thickness.
- Allow for Curing: Allow each coat to cure according to the manufacturer’s guidelines before applying subsequent layers.
4. Final Inspection
- Inspect the Application: After the coating has fully cured, conduct a final inspection to ensure even coverage and proper adhesion.
- Address Any Issues: If any areas are missed or uneven, apply additional coating as needed.
Maintenance Tips for Roof Coatings
Proper maintenance is essential to maximize the lifespan and effectiveness of your roof coating. Here are some practical tips to keep your coated roof in top condition:
- Regular Inspections: Conduct regular roof inspections, especially after severe weather events, to identify any signs of damage or wear.
- Clean Debris: Remove debris, leaves, and dirt from the roof surface to prevent buildup and potential damage to the coating.
- Address Minor Repairs Promptly: Address minor issues such as small cracks or blisters promptly to prevent them from escalating into more significant problems.
- Reapply Coating When Needed: Depending on the type of coating and environmental conditions, reapply the roof coating as recommended by the manufacturer to maintain its protective properties.
Protect Your Roof With a Coating From Indy!
Investing in a high-quality roof coating is a smart move for property managers and commercial property owners looking to protect their assets and reduce long-term maintenance costs. From extending the lifespan of your roof to improving energy efficiency and providing environmental benefits, roof coatings offer a range of advantages.
If you’re ready to explore the benefits of roof coatings for your commercial property, contact our team of roofing experts at Indy Roof & Restoration today. We can help you choose the right coating solution and ensure a professional application that stands the test of time. Don’t wait until roof issues arise—proactively protect your investment with the right roof coating.
